Home / 13,437.59-18,531.16-10,245.28

Finding the Fourth Proportional to 13,437.59, 18,531.16 and 10,245.28

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Solution

The fourth proportional to 13,437.59, 18,531.16 and 10,245.28 is: 14,128.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.59 : 18,531.16 = 10,245.28 : x
  2. Step 2: Convert to fraction form
    13,437.59/18,531.16 = 10,245.28/x
  3. Step 3: Cross multiply
    13,437.59x = 18,531.16 × 10,245.28
  4. Step 4: Simplify right side
    13,437.59x = 189,856,922.92
  5. Step 5: Solve for x
    x = 189,856,922.92/13,437.59
  6. Step 6: Final answer
    x = 14,128.79

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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.