Home / 10,905.61-15,050.52-6,190.19

Finding the Fourth Proportional to 10,905.61, 15,050.52 and 6,190.19

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Solution

The fourth proportional to 10,905.61, 15,050.52 and 6,190.19 is: 8,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.61 : 15,050.52 = 6,190.19 : x
  2. Step 2: Convert to fraction form
    10,905.61/15,050.52 = 6,190.19/x
  3. Step 3: Cross multiply
    10,905.61x = 15,050.52 × 6,190.19
  4. Step 4: Simplify right side
    10,905.61x = 93,165,547.45
  5. Step 5: Solve for x
    x = 93,165,547.45/10,905.61
  6. Step 6: Final answer
    x = 8,542.90

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.