Home / 15,554.61-21,458.53-10,517.01

Finding the Fourth Proportional to 15,554.61, 21,458.53 and 10,517.01

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Solution

The fourth proportional to 15,554.61, 21,458.53 and 10,517.01 is: 14,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.61 : 21,458.53 = 10,517.01 : x
  2. Step 2: Convert to fraction form
    15,554.61/21,458.53 = 10,517.01/x
  3. Step 3: Cross multiply
    15,554.61x = 21,458.53 × 10,517.01
  4. Step 4: Simplify right side
    15,554.61x = 225,679,507.27
  5. Step 5: Solve for x
    x = 225,679,507.27/15,554.61
  6. Step 6: Final answer
    x = 14,508.85

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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.