Home / 8,875.86-12,246.50-5,425.58

Finding the Fourth Proportional to 8,875.86, 12,246.50 and 5,425.58

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Solution

The fourth proportional to 8,875.86, 12,246.50 and 5,425.58 is: 7,485.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.86 : 12,246.50 = 5,425.58 : x
  2. Step 2: Convert to fraction form
    8,875.86/12,246.50 = 5,425.58/x
  3. Step 3: Cross multiply
    8,875.86x = 12,246.50 × 5,425.58
  4. Step 4: Simplify right side
    8,875.86x = 66,444,277.11
  5. Step 5: Solve for x
    x = 66,444,277.11/8,875.86
  6. Step 6: Final answer
    x = 7,485.95

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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.