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Finding the Fourth Proportional to 8,784.68, 13,180.08 and 5,276.68

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Solution

The fourth proportional to 8,784.68, 13,180.08 and 5,276.68 is: 7,916.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.68 : 13,180.08 = 5,276.68 : x
  2. Step 2: Convert to fraction form
    8,784.68/13,180.08 = 5,276.68/x
  3. Step 3: Cross multiply
    8,784.68x = 13,180.08 × 5,276.68
  4. Step 4: Simplify right side
    8,784.68x = 69,547,064.53
  5. Step 5: Solve for x
    x = 69,547,064.53/8,784.68
  6. Step 6: Final answer
    x = 7,916.86

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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.