Home / 8,954.18-12,354.78-5,417.32

Finding the Fourth Proportional to 8,954.18, 12,354.78 and 5,417.32

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Solution

The fourth proportional to 8,954.18, 12,354.78 and 5,417.32 is: 7,474.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.18 : 12,354.78 = 5,417.32 : x
  2. Step 2: Convert to fraction form
    8,954.18/12,354.78 = 5,417.32/x
  3. Step 3: Cross multiply
    8,954.18x = 12,354.78 × 5,417.32
  4. Step 4: Simplify right side
    8,954.18x = 66,929,796.79
  5. Step 5: Solve for x
    x = 66,929,796.79/8,954.18
  6. Step 6: Final answer
    x = 7,474.70

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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.