Home / 8,977.14-12,390.51-5,827.86

Finding the Fourth Proportional to 8,977.14, 12,390.51 and 5,827.86

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Solution

The fourth proportional to 8,977.14, 12,390.51 and 5,827.86 is: 8,043.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.14 : 12,390.51 = 5,827.86 : x
  2. Step 2: Convert to fraction form
    8,977.14/12,390.51 = 5,827.86/x
  3. Step 3: Cross multiply
    8,977.14x = 12,390.51 × 5,827.86
  4. Step 4: Simplify right side
    8,977.14x = 72,210,157.61
  5. Step 5: Solve for x
    x = 72,210,157.61/8,977.14
  6. Step 6: Final answer
    x = 8,043.78

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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.