Home / 14,011.61-20,988.68-11,223.18

Finding the Fourth Proportional to 14,011.61, 20,988.68 and 11,223.18

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Solution

The fourth proportional to 14,011.61, 20,988.68 and 11,223.18 is: 16,811.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011.61 : 20,988.68 = 11,223.18 : x
  2. Step 2: Convert to fraction form
    14,011.61/20,988.68 = 11,223.18/x
  3. Step 3: Cross multiply
    14,011.61x = 20,988.68 × 11,223.18
  4. Step 4: Simplify right side
    14,011.61x = 235,559,677.49
  5. Step 5: Solve for x
    x = 235,559,677.49/14,011.61
  6. Step 6: Final answer
    x = 16,811.76

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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.