Home / 14,248.56-19,663.92-7,961.40

Finding the Fourth Proportional to 14,248.56, 19,663.92 and 7,961.40

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Solution

The fourth proportional to 14,248.56, 19,663.92 and 7,961.40 is: 10,987.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,248.56 : 19,663.92 = 7,961.40 : x
  2. Step 2: Convert to fraction form
    14,248.56/19,663.92 = 7,961.40/x
  3. Step 3: Cross multiply
    14,248.56x = 19,663.92 × 7,961.40
  4. Step 4: Simplify right side
    14,248.56x = 156,552,332.69
  5. Step 5: Solve for x
    x = 156,552,332.69/14,248.56
  6. Step 6: Final answer
    x = 10,987.24

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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.