Home / 7,155.16-9,874.12-4,011.35

Finding the Fourth Proportional to 7,155.16, 9,874.12 and 4,011.35

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Solution

The fourth proportional to 7,155.16, 9,874.12 and 4,011.35 is: 5,535.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.16 : 9,874.12 = 4,011.35 : x
  2. Step 2: Convert to fraction form
    7,155.16/9,874.12 = 4,011.35/x
  3. Step 3: Cross multiply
    7,155.16x = 9,874.12 × 4,011.35
  4. Step 4: Simplify right side
    7,155.16x = 39,608,531.21
  5. Step 5: Solve for x
    x = 39,608,531.21/7,155.16
  6. Step 6: Final answer
    x = 5,535.66

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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.