Home / 9,112.68-12,575.54-5,133.86

Finding the Fourth Proportional to 9,112.68, 12,575.54 and 5,133.86

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Solution

The fourth proportional to 9,112.68, 12,575.54 and 5,133.86 is: 7,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.68 : 12,575.54 = 5,133.86 : x
  2. Step 2: Convert to fraction form
    9,112.68/12,575.54 = 5,133.86/x
  3. Step 3: Cross multiply
    9,112.68x = 12,575.54 × 5,133.86
  4. Step 4: Simplify right side
    9,112.68x = 64,561,011.74
  5. Step 5: Solve for x
    x = 64,561,011.74/9,112.68
  6. Step 6: Final answer
    x = 7,084.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.