Home / 7,170.75-9,891.35-4,513.55

Finding the Fourth Proportional to 7,170.75, 9,891.35 and 4,513.55

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Solution

The fourth proportional to 7,170.75, 9,891.35 and 4,513.55 is: 6,225.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.75 : 9,891.35 = 4,513.55 : x
  2. Step 2: Convert to fraction form
    7,170.75/9,891.35 = 4,513.55/x
  3. Step 3: Cross multiply
    7,170.75x = 9,891.35 × 4,513.55
  4. Step 4: Simplify right side
    7,170.75x = 44,645,030.77
  5. Step 5: Solve for x
    x = 44,645,030.77/7,170.75
  6. Step 6: Final answer
    x = 6,225.99

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Half scale
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Double scale
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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.