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Finding the Fourth Proportional to 12,352.47, 18,547.16 and 12,167.94

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Solution

The fourth proportional to 12,352.47, 18,547.16 and 12,167.94 is: 18,270.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,352.47 : 18,547.16 = 12,167.94 : x
  2. Step 2: Convert to fraction form
    12,352.47/18,547.16 = 12,167.94/x
  3. Step 3: Cross multiply
    12,352.47x = 18,547.16 × 12,167.94
  4. Step 4: Simplify right side
    12,352.47x = 225,680,730.05
  5. Step 5: Solve for x
    x = 225,680,730.05/12,352.47
  6. Step 6: Final answer
    x = 18,270.09

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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.