Home / 15,002.10-20,708.73-13,427.46

Finding the Fourth Proportional to 15,002.10, 20,708.73 and 13,427.46

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Solution

The fourth proportional to 15,002.10, 20,708.73 and 13,427.46 is: 18,535.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.10 : 20,708.73 = 13,427.46 : x
  2. Step 2: Convert to fraction form
    15,002.10/20,708.73 = 13,427.46/x
  3. Step 3: Cross multiply
    15,002.10x = 20,708.73 × 13,427.46
  4. Step 4: Simplify right side
    15,002.10x = 278,065,643.73
  5. Step 5: Solve for x
    x = 278,065,643.73/15,002.10
  6. Step 6: Final answer
    x = 18,535.11

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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.