Home / 12,555.28-17,328.56-8,574.92

Finding the Fourth Proportional to 12,555.28, 17,328.56 and 8,574.92

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Solution

The fourth proportional to 12,555.28, 17,328.56 and 8,574.92 is: 11,834.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.28 : 17,328.56 = 8,574.92 : x
  2. Step 2: Convert to fraction form
    12,555.28/17,328.56 = 8,574.92/x
  3. Step 3: Cross multiply
    12,555.28x = 17,328.56 × 8,574.92
  4. Step 4: Simplify right side
    12,555.28x = 148,591,015.72
  5. Step 5: Solve for x
    x = 148,591,015.72/12,555.28
  6. Step 6: Final answer
    x = 11,834.94

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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.