Home / 15,310.80-21,127.26-8,597.16

Finding the Fourth Proportional to 15,310.80, 21,127.26 and 8,597.16

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Solution

The fourth proportional to 15,310.80, 21,127.26 and 8,597.16 is: 11,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.80 : 21,127.26 = 8,597.16 : x
  2. Step 2: Convert to fraction form
    15,310.80/21,127.26 = 8,597.16/x
  3. Step 3: Cross multiply
    15,310.80x = 21,127.26 × 8,597.16
  4. Step 4: Simplify right side
    15,310.80x = 181,634,434.58
  5. Step 5: Solve for x
    x = 181,634,434.58/15,310.80
  6. Step 6: Final answer
    x = 11,863.16

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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.