Home / 8,950.20-12,350.85-4,971.55

Finding the Fourth Proportional to 8,950.20, 12,350.85 and 4,971.55

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Solution

The fourth proportional to 8,950.20, 12,350.85 and 4,971.55 is: 6,860.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.20 : 12,350.85 = 4,971.55 : x
  2. Step 2: Convert to fraction form
    8,950.20/12,350.85 = 4,971.55/x
  3. Step 3: Cross multiply
    8,950.20x = 12,350.85 × 4,971.55
  4. Step 4: Simplify right side
    8,950.20x = 61,402,868.32
  5. Step 5: Solve for x
    x = 61,402,868.32/8,950.20
  6. Step 6: Final answer
    x = 6,860.50

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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.