Home / 15,827.20-23,721.36-8,887.12

Finding the Fourth Proportional to 15,827.20, 23,721.36 and 8,887.12

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Solution

The fourth proportional to 15,827.20, 23,721.36 and 8,887.12 is: 13,319.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,827.20 : 23,721.36 = 8,887.12 : x
  2. Step 2: Convert to fraction form
    15,827.20/23,721.36 = 8,887.12/x
  3. Step 3: Cross multiply
    15,827.20x = 23,721.36 × 8,887.12
  4. Step 4: Simplify right side
    15,827.20x = 210,814,572.88
  5. Step 5: Solve for x
    x = 210,814,572.88/15,827.20
  6. Step 6: Final answer
    x = 13,319.76

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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.