Home / 12,554.52-18,831.01-5,158.79

Finding the Fourth Proportional to 12,554.52, 18,831.01 and 5,158.79

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Solution

The fourth proportional to 12,554.52, 18,831.01 and 5,158.79 is: 7,737.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554.52 : 18,831.01 = 5,158.79 : x
  2. Step 2: Convert to fraction form
    12,554.52/18,831.01 = 5,158.79/x
  3. Step 3: Cross multiply
    12,554.52x = 18,831.01 × 5,158.79
  4. Step 4: Simplify right side
    12,554.52x = 97,145,260.26
  5. Step 5: Solve for x
    x = 97,145,260.26/12,554.52
  6. Step 6: Final answer
    x = 7,737.87

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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.