Home / 9,340.48-12,885.78-6,686.92

Finding the Fourth Proportional to 9,340.48, 12,885.78 and 6,686.92

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Solution

The fourth proportional to 9,340.48, 12,885.78 and 6,686.92 is: 9,225.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,340.48 : 12,885.78 = 6,686.92 : x
  2. Step 2: Convert to fraction form
    9,340.48/12,885.78 = 6,686.92/x
  3. Step 3: Cross multiply
    9,340.48x = 12,885.78 × 6,686.92
  4. Step 4: Simplify right side
    9,340.48x = 86,166,180.00
  5. Step 5: Solve for x
    x = 86,166,180.00/9,340.48
  6. Step 6: Final answer
    x = 9,225.03

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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.