Home / 13,313.48-19,966.80-3,951.28

Finding the Fourth Proportional to 13,313.48, 19,966.80 and 3,951.28

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Solution

The fourth proportional to 13,313.48, 19,966.80 and 3,951.28 is: 5,925.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.48 : 19,966.80 = 3,951.28 : x
  2. Step 2: Convert to fraction form
    13,313.48/19,966.80 = 3,951.28/x
  3. Step 3: Cross multiply
    13,313.48x = 19,966.80 × 3,951.28
  4. Step 4: Simplify right side
    13,313.48x = 78,894,397.75
  5. Step 5: Solve for x
    x = 78,894,397.75/13,313.48
  6. Step 6: Final answer
    x = 5,925.90

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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.