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Finding the Fourth Proportional to 12,547.68, 18,827.70 and 8,873.52

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Solution

The fourth proportional to 12,547.68, 18,827.70 and 8,873.52 is: 13,314.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.68 : 18,827.70 = 8,873.52 : x
  2. Step 2: Convert to fraction form
    12,547.68/18,827.70 = 8,873.52/x
  3. Step 3: Cross multiply
    12,547.68x = 18,827.70 × 8,873.52
  4. Step 4: Simplify right side
    12,547.68x = 167,067,972.50
  5. Step 5: Solve for x
    x = 167,067,972.50/12,547.68
  6. Step 6: Final answer
    x = 13,314.65

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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.