Home / 13,948.62-19,248.89-7,981.76

Finding the Fourth Proportional to 13,948.62, 19,248.89 and 7,981.76

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Solution

The fourth proportional to 13,948.62, 19,248.89 and 7,981.76 is: 11,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.62 : 19,248.89 = 7,981.76 : x
  2. Step 2: Convert to fraction form
    13,948.62/19,248.89 = 7,981.76/x
  3. Step 3: Cross multiply
    13,948.62x = 19,248.89 × 7,981.76
  4. Step 4: Simplify right side
    13,948.62x = 153,639,884.09
  5. Step 5: Solve for x
    x = 153,639,884.09/13,948.62
  6. Step 6: Final answer
    x = 11,014.70

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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.