Home / 15,310.70-21,127.13-8,597.06

Finding the Fourth Proportional to 15,310.70, 21,127.13 and 8,597.06

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Solution

The fourth proportional to 15,310.70, 21,127.13 and 8,597.06 is: 11,863.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.70 : 21,127.13 = 8,597.06 : x
  2. Step 2: Convert to fraction form
    15,310.70/21,127.13 = 8,597.06/x
  3. Step 3: Cross multiply
    15,310.70x = 21,127.13 × 8,597.06
  4. Step 4: Simplify right side
    15,310.70x = 181,631,246.31
  5. Step 5: Solve for x
    x = 181,631,246.31/15,310.70
  6. Step 6: Final answer
    x = 11,863.03

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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.