Home / 15,347.48-21,180.30-9,059.72

Finding the Fourth Proportional to 15,347.48, 21,180.30 and 9,059.72

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Solution

The fourth proportional to 15,347.48, 21,180.30 and 9,059.72 is: 12,502.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,347.48 : 21,180.30 = 9,059.72 : x
  2. Step 2: Convert to fraction form
    15,347.48/21,180.30 = 9,059.72/x
  3. Step 3: Cross multiply
    15,347.48x = 21,180.30 × 9,059.72
  4. Step 4: Simplify right side
    15,347.48x = 191,887,587.52
  5. Step 5: Solve for x
    x = 191,887,587.52/15,347.48
  6. Step 6: Final answer
    x = 12,502.87

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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.