Home / 15,610.88-21,543.36-8,537.15

Finding the Fourth Proportional to 15,610.88, 21,543.36 and 8,537.15

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Solution

The fourth proportional to 15,610.88, 21,543.36 and 8,537.15 is: 11,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610.88 : 21,543.36 = 8,537.15 : x
  2. Step 2: Convert to fraction form
    15,610.88/21,543.36 = 8,537.15/x
  3. Step 3: Cross multiply
    15,610.88x = 21,543.36 × 8,537.15
  4. Step 4: Simplify right side
    15,610.88x = 183,918,895.82
  5. Step 5: Solve for x
    x = 183,918,895.82/15,610.88
  6. Step 6: Final answer
    x = 11,781.46

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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.