Home / 8,950.12-12,351.35-5,173.40

Finding the Fourth Proportional to 8,950.12, 12,351.35 and 5,173.40

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Solution

The fourth proportional to 8,950.12, 12,351.35 and 5,173.40 is: 7,139.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.12 : 12,351.35 = 5,173.40 : x
  2. Step 2: Convert to fraction form
    8,950.12/12,351.35 = 5,173.40/x
  3. Step 3: Cross multiply
    8,950.12x = 12,351.35 × 5,173.40
  4. Step 4: Simplify right side
    8,950.12x = 63,898,517.90
  5. Step 5: Solve for x
    x = 63,898,517.90/8,950.12
  6. Step 6: Final answer
    x = 7,139.41

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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.