Home / 12,666.38-19,001.59-10,320.82

Finding the Fourth Proportional to 12,666.38, 19,001.59 and 10,320.82

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Solution

The fourth proportional to 12,666.38, 19,001.59 and 10,320.82 is: 15,482.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.38 : 19,001.59 = 10,320.82 : x
  2. Step 2: Convert to fraction form
    12,666.38/19,001.59 = 10,320.82/x
  3. Step 3: Cross multiply
    12,666.38x = 19,001.59 × 10,320.82
  4. Step 4: Simplify right side
    12,666.38x = 196,111,916.80
  5. Step 5: Solve for x
    x = 196,111,916.80/12,666.38
  6. Step 6: Final answer
    x = 15,482.88

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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.