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Finding the Fourth Proportional to 9,312.59, 12,841.74 and 6,483.20

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Solution

The fourth proportional to 9,312.59, 12,841.74 and 6,483.20 is: 8,940.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.59 : 12,841.74 = 6,483.20 : x
  2. Step 2: Convert to fraction form
    9,312.59/12,841.74 = 6,483.20/x
  3. Step 3: Cross multiply
    9,312.59x = 12,841.74 × 6,483.20
  4. Step 4: Simplify right side
    9,312.59x = 83,255,504.56
  5. Step 5: Solve for x
    x = 83,255,504.56/9,312.59
  6. Step 6: Final answer
    x = 8,940.10

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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.