Home / 13,299.61-18,353.25-7,331.16

Finding the Fourth Proportional to 13,299.61, 18,353.25 and 7,331.16

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Solution

The fourth proportional to 13,299.61, 18,353.25 and 7,331.16 is: 10,116.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.61 : 18,353.25 = 7,331.16 : x
  2. Step 2: Convert to fraction form
    13,299.61/18,353.25 = 7,331.16/x
  3. Step 3: Cross multiply
    13,299.61x = 18,353.25 × 7,331.16
  4. Step 4: Simplify right side
    13,299.61x = 134,550,612.27
  5. Step 5: Solve for x
    x = 134,550,612.27/13,299.61
  6. Step 6: Final answer
    x = 10,116.88

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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.