Home / 13,552.72-20,302.76-9,988.36

Finding the Fourth Proportional to 13,552.72, 20,302.76 and 9,988.36

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Solution

The fourth proportional to 13,552.72, 20,302.76 and 9,988.36 is: 14,963.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,552.72 : 20,302.76 = 9,988.36 : x
  2. Step 2: Convert to fraction form
    13,552.72/20,302.76 = 9,988.36/x
  3. Step 3: Cross multiply
    13,552.72x = 20,302.76 × 9,988.36
  4. Step 4: Simplify right side
    13,552.72x = 202,791,250.09
  5. Step 5: Solve for x
    x = 202,791,250.09/13,552.72
  6. Step 6: Final answer
    x = 14,963.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.