Home / 15,437.13-23,118.69-7,920.91

Finding the Fourth Proportional to 15,437.13, 23,118.69 and 7,920.91

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Solution

The fourth proportional to 15,437.13, 23,118.69 and 7,920.91 is: 11,862.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,437.13 : 23,118.69 = 7,920.91 : x
  2. Step 2: Convert to fraction form
    15,437.13/23,118.69 = 7,920.91/x
  3. Step 3: Cross multiply
    15,437.13x = 23,118.69 × 7,920.91
  4. Step 4: Simplify right side
    15,437.13x = 183,120,927.41
  5. Step 5: Solve for x
    x = 183,120,927.41/15,437.13
  6. Step 6: Final answer
    x = 11,862.37

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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.