Home / 9,330.10-12,878.18-6,145.72

Finding the Fourth Proportional to 9,330.10, 12,878.18 and 6,145.72

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Solution

The fourth proportional to 9,330.10, 12,878.18 and 6,145.72 is: 8,482.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,330.10 : 12,878.18 = 6,145.72 : x
  2. Step 2: Convert to fraction form
    9,330.10/12,878.18 = 6,145.72/x
  3. Step 3: Cross multiply
    9,330.10x = 12,878.18 × 6,145.72
  4. Step 4: Simplify right side
    9,330.10x = 79,145,624.00
  5. Step 5: Solve for x
    x = 79,145,624.00/9,330.10
  6. Step 6: Final answer
    x = 8,482.83

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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.