Home / 8,956.11-12,359.21-4,977.57

Finding the Fourth Proportional to 8,956.11, 12,359.21 and 4,977.57

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Solution

The fourth proportional to 8,956.11, 12,359.21 and 4,977.57 is: 6,868.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.11 : 12,359.21 = 4,977.57 : x
  2. Step 2: Convert to fraction form
    8,956.11/12,359.21 = 4,977.57/x
  3. Step 3: Cross multiply
    8,956.11x = 12,359.21 × 4,977.57
  4. Step 4: Simplify right side
    8,956.11x = 61,518,808.03
  5. Step 5: Solve for x
    x = 61,518,808.03/8,956.11
  6. Step 6: Final answer
    x = 6,868.92

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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.