Home / 7,981.66-11,014.71-4,445.57

Finding the Fourth Proportional to 7,981.66, 11,014.71 and 4,445.57

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Solution

The fourth proportional to 7,981.66, 11,014.71 and 4,445.57 is: 6,134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.66 : 11,014.71 = 4,445.57 : x
  2. Step 2: Convert to fraction form
    7,981.66/11,014.71 = 4,445.57/x
  3. Step 3: Cross multiply
    7,981.66x = 11,014.71 × 4,445.57
  4. Step 4: Simplify right side
    7,981.66x = 48,966,642.11
  5. Step 5: Solve for x
    x = 48,966,642.11/7,981.66
  6. Step 6: Final answer
    x = 6,134.90

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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.