Home / 19,921.16-27,490.17-10,966.93

Finding the Fourth Proportional to 19,921.16, 27,490.17 and 10,966.93

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Solution

The fourth proportional to 19,921.16, 27,490.17 and 10,966.93 is: 15,133.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.16 : 27,490.17 = 10,966.93 : x
  2. Step 2: Convert to fraction form
    19,921.16/27,490.17 = 10,966.93/x
  3. Step 3: Cross multiply
    19,921.16x = 27,490.17 × 10,966.93
  4. Step 4: Simplify right side
    19,921.16x = 301,482,770.08
  5. Step 5: Solve for x
    x = 301,482,770.08/19,921.16
  6. Step 6: Final answer
    x = 15,133.80

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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.