Home / 15,718.60-23,543.07-9,128.44

Finding the Fourth Proportional to 15,718.60, 23,543.07 and 9,128.44

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Solution

The fourth proportional to 15,718.60, 23,543.07 and 9,128.44 is: 13,672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,718.60 : 23,543.07 = 9,128.44 : x
  2. Step 2: Convert to fraction form
    15,718.60/23,543.07 = 9,128.44/x
  3. Step 3: Cross multiply
    15,718.60x = 23,543.07 × 9,128.44
  4. Step 4: Simplify right side
    15,718.60x = 214,911,501.91
  5. Step 5: Solve for x
    x = 214,911,501.91/15,718.60
  6. Step 6: Final answer
    x = 13,672.43

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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.