Home / 7,870.13-10,860.27-4,332.66

Finding the Fourth Proportional to 7,870.13, 10,860.27 and 4,332.66

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Solution

The fourth proportional to 7,870.13, 10,860.27 and 4,332.66 is: 5,978.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870.13 : 10,860.27 = 4,332.66 : x
  2. Step 2: Convert to fraction form
    7,870.13/10,860.27 = 4,332.66/x
  3. Step 3: Cross multiply
    7,870.13x = 10,860.27 × 4,332.66
  4. Step 4: Simplify right side
    7,870.13x = 47,053,857.42
  5. Step 5: Solve for x
    x = 47,053,857.42/7,870.13
  6. Step 6: Final answer
    x = 5,978.79

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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.