Home / 13,299.28-18,353.13-7,331.16

Finding the Fourth Proportional to 13,299.28, 18,353.13 and 7,331.16

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Solution

The fourth proportional to 13,299.28, 18,353.13 and 7,331.16 is: 10,117.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.28 : 18,353.13 = 7,331.16 : x
  2. Step 2: Convert to fraction form
    13,299.28/18,353.13 = 7,331.16/x
  3. Step 3: Cross multiply
    13,299.28x = 18,353.13 × 7,331.16
  4. Step 4: Simplify right side
    13,299.28x = 134,549,815.10
  5. Step 5: Solve for x
    x = 134,549,815.10/13,299.28
  6. Step 6: Final answer
    x = 10,117.07

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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.