Home / 15,507.91-23,251.33-7,890.47

Finding the Fourth Proportional to 15,507.91, 23,251.33 and 7,890.47

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Solution

The fourth proportional to 15,507.91, 23,251.33 and 7,890.47 is: 11,830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507.91 : 23,251.33 = 7,890.47 : x
  2. Step 2: Convert to fraction form
    15,507.91/23,251.33 = 7,890.47/x
  3. Step 3: Cross multiply
    15,507.91x = 23,251.33 × 7,890.47
  4. Step 4: Simplify right side
    15,507.91x = 183,463,921.83
  5. Step 5: Solve for x
    x = 183,463,921.83/15,507.91
  6. Step 6: Final answer
    x = 11,830.34

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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.