Home / 15,651.13-21,599.10-8,577.49

Finding the Fourth Proportional to 15,651.13, 21,599.10 and 8,577.49

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Solution

The fourth proportional to 15,651.13, 21,599.10 and 8,577.49 is: 11,837.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,651.13 : 21,599.10 = 8,577.49 : x
  2. Step 2: Convert to fraction form
    15,651.13/21,599.10 = 8,577.49/x
  3. Step 3: Cross multiply
    15,651.13x = 21,599.10 × 8,577.49
  4. Step 4: Simplify right side
    15,651.13x = 185,266,064.26
  5. Step 5: Solve for x
    x = 185,266,064.26/15,651.13
  6. Step 6: Final answer
    x = 11,837.23

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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.