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Finding the Fourth Proportional to 8,987.01, 12,398.53 and 6,004.79

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Solution

The fourth proportional to 8,987.01, 12,398.53 and 6,004.79 is: 8,284.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.01 : 12,398.53 = 6,004.79 : x
  2. Step 2: Convert to fraction form
    8,987.01/12,398.53 = 6,004.79/x
  3. Step 3: Cross multiply
    8,987.01x = 12,398.53 × 6,004.79
  4. Step 4: Simplify right side
    8,987.01x = 74,450,568.96
  5. Step 5: Solve for x
    x = 74,450,568.96/8,987.01
  6. Step 6: Final answer
    x = 8,284.24

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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.