Home / 7,402.12-10,197.58-5,159.92

Finding the Fourth Proportional to 7,402.12, 10,197.58 and 5,159.92

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Solution

The fourth proportional to 7,402.12, 10,197.58 and 5,159.92 is: 7,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.12 : 10,197.58 = 5,159.92 : x
  2. Step 2: Convert to fraction form
    7,402.12/10,197.58 = 5,159.92/x
  3. Step 3: Cross multiply
    7,402.12x = 10,197.58 × 5,159.92
  4. Step 4: Simplify right side
    7,402.12x = 52,618,696.99
  5. Step 5: Solve for x
    x = 52,618,696.99/7,402.12
  6. Step 6: Final answer
    x = 7,108.60

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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.