Home / 8,956.14-12,359.37-4,977.15

Finding the Fourth Proportional to 8,956.14, 12,359.37 and 4,977.15

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Solution

The fourth proportional to 8,956.14, 12,359.37 and 4,977.15 is: 6,868.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.14 : 12,359.37 = 4,977.15 : x
  2. Step 2: Convert to fraction form
    8,956.14/12,359.37 = 4,977.15/x
  3. Step 3: Cross multiply
    8,956.14x = 12,359.37 × 4,977.15
  4. Step 4: Simplify right side
    8,956.14x = 61,514,438.40
  5. Step 5: Solve for x
    x = 61,514,438.40/8,956.14
  6. Step 6: Final answer
    x = 6,868.41

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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.