Home / 15,601.17-21,531.09-8,528.65

Finding the Fourth Proportional to 15,601.17, 21,531.09 and 8,528.65

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Solution

The fourth proportional to 15,601.17, 21,531.09 and 8,528.65 is: 11,770.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,601.17 : 21,531.09 = 8,528.65 : x
  2. Step 2: Convert to fraction form
    15,601.17/21,531.09 = 8,528.65/x
  3. Step 3: Cross multiply
    15,601.17x = 21,531.09 × 8,528.65
  4. Step 4: Simplify right side
    15,601.17x = 183,631,130.73
  5. Step 5: Solve for x
    x = 183,631,130.73/15,601.17
  6. Step 6: Final answer
    x = 11,770.34

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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.