Home / 15,924.49-21,981.76-11,957.06

Finding the Fourth Proportional to 15,924.49, 21,981.76 and 11,957.06

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Solution

The fourth proportional to 15,924.49, 21,981.76 and 11,957.06 is: 16,505.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,924.49 : 21,981.76 = 11,957.06 : x
  2. Step 2: Convert to fraction form
    15,924.49/21,981.76 = 11,957.06/x
  3. Step 3: Cross multiply
    15,924.49x = 21,981.76 × 11,957.06
  4. Step 4: Simplify right side
    15,924.49x = 262,837,248.29
  5. Step 5: Solve for x
    x = 262,837,248.29/15,924.49
  6. Step 6: Final answer
    x = 16,505.22

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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.