Home / 7,176.10-10,764.15-4,257.70

Finding the Fourth Proportional to 7,176.10, 10,764.15 and 4,257.70

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Solution

The fourth proportional to 7,176.10, 10,764.15 and 4,257.70 is: 6,386.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.10 : 10,764.15 = 4,257.70 : x
  2. Step 2: Convert to fraction form
    7,176.10/10,764.15 = 4,257.70/x
  3. Step 3: Cross multiply
    7,176.10x = 10,764.15 × 4,257.70
  4. Step 4: Simplify right side
    7,176.10x = 45,830,521.46
  5. Step 5: Solve for x
    x = 45,830,521.46/7,176.10
  6. Step 6: Final answer
    x = 6,386.55

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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.