Home / 8,818.70-12,165.47-6,424.95

Finding the Fourth Proportional to 8,818.70, 12,165.47 and 6,424.95

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Solution

The fourth proportional to 8,818.70, 12,165.47 and 6,424.95 is: 8,863.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.70 : 12,165.47 = 6,424.95 : x
  2. Step 2: Convert to fraction form
    8,818.70/12,165.47 = 6,424.95/x
  3. Step 3: Cross multiply
    8,818.70x = 12,165.47 × 6,424.95
  4. Step 4: Simplify right side
    8,818.70x = 78,162,482.82
  5. Step 5: Solve for x
    x = 78,162,482.82/8,818.70
  6. Step 6: Final answer
    x = 8,863.27

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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.