Home / 12,655.50-18,966.57-11,004.18

Finding the Fourth Proportional to 12,655.50, 18,966.57 and 11,004.18

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Solution

The fourth proportional to 12,655.50, 18,966.57 and 11,004.18 is: 16,491.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,655.50 : 18,966.57 = 11,004.18 : x
  2. Step 2: Convert to fraction form
    12,655.50/18,966.57 = 11,004.18/x
  3. Step 3: Cross multiply
    12,655.50x = 18,966.57 × 11,004.18
  4. Step 4: Simplify right side
    12,655.50x = 208,711,550.26
  5. Step 5: Solve for x
    x = 208,711,550.26/12,655.50
  6. Step 6: Final answer
    x = 16,491.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.