Home / 7,919.18-10,928.76-5,124.68

Finding the Fourth Proportional to 7,919.18, 10,928.76 and 5,124.68

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Solution

The fourth proportional to 7,919.18, 10,928.76 and 5,124.68 is: 7,072.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.18 : 10,928.76 = 5,124.68 : x
  2. Step 2: Convert to fraction form
    7,919.18/10,928.76 = 5,124.68/x
  3. Step 3: Cross multiply
    7,919.18x = 10,928.76 × 5,124.68
  4. Step 4: Simplify right side
    7,919.18x = 56,006,397.80
  5. Step 5: Solve for x
    x = 56,006,397.80/7,919.18
  6. Step 6: Final answer
    x = 7,072.25

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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.