Home / 13,254.39-18,295.31-8,487.17

Finding the Fourth Proportional to 13,254.39, 18,295.31 and 8,487.17

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Solution

The fourth proportional to 13,254.39, 18,295.31 and 8,487.17 is: 11,715.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.39 : 18,295.31 = 8,487.17 : x
  2. Step 2: Convert to fraction form
    13,254.39/18,295.31 = 8,487.17/x
  3. Step 3: Cross multiply
    13,254.39x = 18,295.31 × 8,487.17
  4. Step 4: Simplify right side
    13,254.39x = 155,275,370.22
  5. Step 5: Solve for x
    x = 155,275,370.22/13,254.39
  6. Step 6: Final answer
    x = 11,715.02

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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.