Home / 13,300.85-18,354.95-7,251.15

Finding the Fourth Proportional to 13,300.85, 18,354.95 and 7,251.15

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Solution

The fourth proportional to 13,300.85, 18,354.95 and 7,251.15 is: 10,006.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.85 : 18,354.95 = 7,251.15 : x
  2. Step 2: Convert to fraction form
    13,300.85/18,354.95 = 7,251.15/x
  3. Step 3: Cross multiply
    13,300.85x = 18,354.95 × 7,251.15
  4. Step 4: Simplify right side
    13,300.85x = 133,094,459.44
  5. Step 5: Solve for x
    x = 133,094,459.44/13,300.85
  6. Step 6: Final answer
    x = 10,006.47

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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.