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Finding the Fourth Proportional to 8,547.58, 12,823.98 and 4,164.40

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Solution

The fourth proportional to 8,547.58, 12,823.98 and 4,164.40 is: 6,247.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,547.58 : 12,823.98 = 4,164.40 : x
  2. Step 2: Convert to fraction form
    8,547.58/12,823.98 = 4,164.40/x
  3. Step 3: Cross multiply
    8,547.58x = 12,823.98 × 4,164.40
  4. Step 4: Simplify right side
    8,547.58x = 53,404,182.31
  5. Step 5: Solve for x
    x = 53,404,182.31/8,547.58
  6. Step 6: Final answer
    x = 6,247.87

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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.