Home / 12,771.15-17,624.30-7,106.55

Finding the Fourth Proportional to 12,771.15, 17,624.30 and 7,106.55

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Solution

The fourth proportional to 12,771.15, 17,624.30 and 7,106.55 is: 9,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.15 : 17,624.30 = 7,106.55 : x
  2. Step 2: Convert to fraction form
    12,771.15/17,624.30 = 7,106.55/x
  3. Step 3: Cross multiply
    12,771.15x = 17,624.30 × 7,106.55
  4. Step 4: Simplify right side
    12,771.15x = 125,247,933.63
  5. Step 5: Solve for x
    x = 125,247,933.63/12,771.15
  6. Step 6: Final answer
    x = 9,807.10

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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.