Home / 15,003.90-20,725.13-11,510.24

Finding the Fourth Proportional to 15,003.90, 20,725.13 and 11,510.24

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Solution

The fourth proportional to 15,003.90, 20,725.13 and 11,510.24 is: 15,899.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.90 : 20,725.13 = 11,510.24 : x
  2. Step 2: Convert to fraction form
    15,003.90/20,725.13 = 11,510.24/x
  3. Step 3: Cross multiply
    15,003.90x = 20,725.13 × 11,510.24
  4. Step 4: Simplify right side
    15,003.90x = 238,551,145.48
  5. Step 5: Solve for x
    x = 238,551,145.48/15,003.90
  6. Step 6: Final answer
    x = 15,899.28

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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.