Home / 15,415.52-21,273.42-10,702.53

Finding the Fourth Proportional to 15,415.52, 21,273.42 and 10,702.53

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Solution

The fourth proportional to 15,415.52, 21,273.42 and 10,702.53 is: 14,769.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.52 : 21,273.42 = 10,702.53 : x
  2. Step 2: Convert to fraction form
    15,415.52/21,273.42 = 10,702.53/x
  3. Step 3: Cross multiply
    15,415.52x = 21,273.42 × 10,702.53
  4. Step 4: Simplify right side
    15,415.52x = 227,679,415.75
  5. Step 5: Solve for x
    x = 227,679,415.75/15,415.52
  6. Step 6: Final answer
    x = 14,769.50

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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.