Home / 15,347.25-21,177.39-8,632.53

Finding the Fourth Proportional to 15,347.25, 21,177.39 and 8,632.53

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Solution

The fourth proportional to 15,347.25, 21,177.39 and 8,632.53 is: 11,911.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,347.25 : 21,177.39 = 8,632.53 : x
  2. Step 2: Convert to fraction form
    15,347.25/21,177.39 = 8,632.53/x
  3. Step 3: Cross multiply
    15,347.25x = 21,177.39 × 8,632.53
  4. Step 4: Simplify right side
    15,347.25x = 182,814,454.50
  5. Step 5: Solve for x
    x = 182,814,454.50/15,347.25
  6. Step 6: Final answer
    x = 11,911.87

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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.