Home / 7,117.89-10,680.18-4,484.79

Finding the Fourth Proportional to 7,117.89, 10,680.18 and 4,484.79

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Solution

The fourth proportional to 7,117.89, 10,680.18 and 4,484.79 is: 6,729.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.89 : 10,680.18 = 4,484.79 : x
  2. Step 2: Convert to fraction form
    7,117.89/10,680.18 = 4,484.79/x
  3. Step 3: Cross multiply
    7,117.89x = 10,680.18 × 4,484.79
  4. Step 4: Simplify right side
    7,117.89x = 47,898,364.46
  5. Step 5: Solve for x
    x = 47,898,364.46/7,117.89
  6. Step 6: Final answer
    x = 6,729.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.