Home / 7,875.11-10,866.21-5,042.95

Finding the Fourth Proportional to 7,875.11, 10,866.21 and 5,042.95

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Solution

The fourth proportional to 7,875.11, 10,866.21 and 5,042.95 is: 6,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.11 : 10,866.21 = 5,042.95 : x
  2. Step 2: Convert to fraction form
    7,875.11/10,866.21 = 5,042.95/x
  3. Step 3: Cross multiply
    7,875.11x = 10,866.21 × 5,042.95
  4. Step 4: Simplify right side
    7,875.11x = 54,797,753.72
  5. Step 5: Solve for x
    x = 54,797,753.72/7,875.11
  6. Step 6: Final answer
    x = 6,958.35

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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.