Home / 8,955.11-12,354.35-6,117.90

Finding the Fourth Proportional to 8,955.11, 12,354.35 and 6,117.90

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Solution

The fourth proportional to 8,955.11, 12,354.35 and 6,117.90 is: 8,440.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.11 : 12,354.35 = 6,117.90 : x
  2. Step 2: Convert to fraction form
    8,955.11/12,354.35 = 6,117.90/x
  3. Step 3: Cross multiply
    8,955.11x = 12,354.35 × 6,117.90
  4. Step 4: Simplify right side
    8,955.11x = 75,582,647.28
  5. Step 5: Solve for x
    x = 75,582,647.28/8,955.11
  6. Step 6: Final answer
    x = 8,440.17

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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.