Home / 13,417.92-20,126.88-7,875.36

Finding the Fourth Proportional to 13,417.92, 20,126.88 and 7,875.36

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Solution

The fourth proportional to 13,417.92, 20,126.88 and 7,875.36 is: 11,813.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.92 : 20,126.88 = 7,875.36 : x
  2. Step 2: Convert to fraction form
    13,417.92/20,126.88 = 7,875.36/x
  3. Step 3: Cross multiply
    13,417.92x = 20,126.88 × 7,875.36
  4. Step 4: Simplify right side
    13,417.92x = 158,506,425.68
  5. Step 5: Solve for x
    x = 158,506,425.68/13,417.92
  6. Step 6: Final answer
    x = 11,813.04

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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.