Home / 8,950.15-12,352.70-5,172.66

Finding the Fourth Proportional to 8,950.15, 12,352.70 and 5,172.66

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Solution

The fourth proportional to 8,950.15, 12,352.70 and 5,172.66 is: 7,139.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.15 : 12,352.70 = 5,172.66 : x
  2. Step 2: Convert to fraction form
    8,950.15/12,352.70 = 5,172.66/x
  3. Step 3: Cross multiply
    8,950.15x = 12,352.70 × 5,172.66
  4. Step 4: Simplify right side
    8,950.15x = 63,896,330.11
  5. Step 5: Solve for x
    x = 63,896,330.11/8,950.15
  6. Step 6: Final answer
    x = 7,139.14

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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.