Home / 10,422.48-15,619.14-7,487.04

Finding the Fourth Proportional to 10,422.48, 15,619.14 and 7,487.04

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Solution

The fourth proportional to 10,422.48, 15,619.14 and 7,487.04 is: 11,220.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.48 : 15,619.14 = 7,487.04 : x
  2. Step 2: Convert to fraction form
    10,422.48/15,619.14 = 7,487.04/x
  3. Step 3: Cross multiply
    10,422.48x = 15,619.14 × 7,487.04
  4. Step 4: Simplify right side
    10,422.48x = 116,941,125.95
  5. Step 5: Solve for x
    x = 116,941,125.95/10,422.48
  6. Step 6: Final answer
    x = 11,220.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.