Home / 13,547.60-20,313.12-8,861.92

Finding the Fourth Proportional to 13,547.60, 20,313.12 and 8,861.92

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Solution

The fourth proportional to 13,547.60, 20,313.12 and 8,861.92 is: 13,287.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.60 : 20,313.12 = 8,861.92 : x
  2. Step 2: Convert to fraction form
    13,547.60/20,313.12 = 8,861.92/x
  3. Step 3: Cross multiply
    13,547.60x = 20,313.12 × 8,861.92
  4. Step 4: Simplify right side
    13,547.60x = 180,013,244.39
  5. Step 5: Solve for x
    x = 180,013,244.39/13,547.60
  6. Step 6: Final answer
    x = 13,287.46

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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.