Home / 13,032.28-17,988.92-8,124.63

Finding the Fourth Proportional to 13,032.28, 17,988.92 and 8,124.63

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Solution

The fourth proportional to 13,032.28, 17,988.92 and 8,124.63 is: 11,214.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,032.28 : 17,988.92 = 8,124.63 : x
  2. Step 2: Convert to fraction form
    13,032.28/17,988.92 = 8,124.63/x
  3. Step 3: Cross multiply
    13,032.28x = 17,988.92 × 8,124.63
  4. Step 4: Simplify right side
    13,032.28x = 146,153,319.10
  5. Step 5: Solve for x
    x = 146,153,319.10/13,032.28
  6. Step 6: Final answer
    x = 11,214.72

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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.