Home / 9,140.40-12,612.78-6,751.62

Finding the Fourth Proportional to 9,140.40, 12,612.78 and 6,751.62

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Solution

The fourth proportional to 9,140.40, 12,612.78 and 6,751.62 is: 9,316.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.40 : 12,612.78 = 6,751.62 : x
  2. Step 2: Convert to fraction form
    9,140.40/12,612.78 = 6,751.62/x
  3. Step 3: Cross multiply
    9,140.40x = 12,612.78 × 6,751.62
  4. Step 4: Simplify right side
    9,140.40x = 85,156,697.70
  5. Step 5: Solve for x
    x = 85,156,697.70/9,140.40
  6. Step 6: Final answer
    x = 9,316.52

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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.