Home / 10,368.51-15,554.38-4,128.57

Finding the Fourth Proportional to 10,368.51, 15,554.38 and 4,128.57

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Solution

The fourth proportional to 10,368.51, 15,554.38 and 4,128.57 is: 6,193.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.51 : 15,554.38 = 4,128.57 : x
  2. Step 2: Convert to fraction form
    10,368.51/15,554.38 = 4,128.57/x
  3. Step 3: Cross multiply
    10,368.51x = 15,554.38 × 4,128.57
  4. Step 4: Simplify right side
    10,368.51x = 64,217,344.06
  5. Step 5: Solve for x
    x = 64,217,344.06/10,368.51
  6. Step 6: Final answer
    x = 6,193.50

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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.