Home / 8,867.61-12,238.16-5,330.75

Finding the Fourth Proportional to 8,867.61, 12,238.16 and 5,330.75

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Solution

The fourth proportional to 8,867.61, 12,238.16 and 5,330.75 is: 7,356.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.61 : 12,238.16 = 5,330.75 : x
  2. Step 2: Convert to fraction form
    8,867.61/12,238.16 = 5,330.75/x
  3. Step 3: Cross multiply
    8,867.61x = 12,238.16 × 5,330.75
  4. Step 4: Simplify right side
    8,867.61x = 65,238,483.58
  5. Step 5: Solve for x
    x = 65,238,483.58/8,867.61
  6. Step 6: Final answer
    x = 7,356.94

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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.