Home / 13,307.28-18,364.17-7,339.16

Finding the Fourth Proportional to 13,307.28, 18,364.17 and 7,339.16

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Solution

The fourth proportional to 13,307.28, 18,364.17 and 7,339.16 is: 10,128.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.28 : 18,364.17 = 7,339.16 : x
  2. Step 2: Convert to fraction form
    13,307.28/18,364.17 = 7,339.16/x
  3. Step 3: Cross multiply
    13,307.28x = 18,364.17 × 7,339.16
  4. Step 4: Simplify right side
    13,307.28x = 134,777,581.90
  5. Step 5: Solve for x
    x = 134,777,581.90/13,307.28
  6. Step 6: Final answer
    x = 10,128.11

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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.