Home / 10,365.10-15,547.65-7,449.10

Finding the Fourth Proportional to 10,365.10, 15,547.65 and 7,449.10

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Solution

The fourth proportional to 10,365.10, 15,547.65 and 7,449.10 is: 11,173.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,365.10 : 15,547.65 = 7,449.10 : x
  2. Step 2: Convert to fraction form
    10,365.10/15,547.65 = 7,449.10/x
  3. Step 3: Cross multiply
    10,365.10x = 15,547.65 × 7,449.10
  4. Step 4: Simplify right side
    10,365.10x = 115,815,999.62
  5. Step 5: Solve for x
    x = 115,815,999.62/10,365.10
  6. Step 6: Final answer
    x = 11,173.65

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.