Home / 12,666.32-19,001.92-5,266.80

Finding the Fourth Proportional to 12,666.32, 19,001.92 and 5,266.80

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Solution

The fourth proportional to 12,666.32, 19,001.92 and 5,266.80 is: 7,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.32 : 19,001.92 = 5,266.80 : x
  2. Step 2: Convert to fraction form
    12,666.32/19,001.92 = 5,266.80/x
  3. Step 3: Cross multiply
    12,666.32x = 19,001.92 × 5,266.80
  4. Step 4: Simplify right side
    12,666.32x = 100,079,312.26
  5. Step 5: Solve for x
    x = 100,079,312.26/12,666.32
  6. Step 6: Final answer
    x = 7,901.21

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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.