Home / 7,872.14-10,860.12-4,726.50

Finding the Fourth Proportional to 7,872.14, 10,860.12 and 4,726.50

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Solution

The fourth proportional to 7,872.14, 10,860.12 and 4,726.50 is: 6,520.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.14 : 10,860.12 = 4,726.50 : x
  2. Step 2: Convert to fraction form
    7,872.14/10,860.12 = 4,726.50/x
  3. Step 3: Cross multiply
    7,872.14x = 10,860.12 × 4,726.50
  4. Step 4: Simplify right side
    7,872.14x = 51,330,357.18
  5. Step 5: Solve for x
    x = 51,330,357.18/7,872.14
  6. Step 6: Final answer
    x = 6,520.51

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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.