Home / 9,312.36-12,837.78-6,658.80

Finding the Fourth Proportional to 9,312.36, 12,837.78 and 6,658.80

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Solution

The fourth proportional to 9,312.36, 12,837.78 and 6,658.80 is: 9,179.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.36 : 12,837.78 = 6,658.80 : x
  2. Step 2: Convert to fraction form
    9,312.36/12,837.78 = 6,658.80/x
  3. Step 3: Cross multiply
    9,312.36x = 12,837.78 × 6,658.80
  4. Step 4: Simplify right side
    9,312.36x = 85,484,209.46
  5. Step 5: Solve for x
    x = 85,484,209.46/9,312.36
  6. Step 6: Final answer
    x = 9,179.65

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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.