Home / 14,688.40-22,016.40-8,119.30

Finding the Fourth Proportional to 14,688.40, 22,016.40 and 8,119.30

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Solution

The fourth proportional to 14,688.40, 22,016.40 and 8,119.30 is: 12,170.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,688.40 : 22,016.40 = 8,119.30 : x
  2. Step 2: Convert to fraction form
    14,688.40/22,016.40 = 8,119.30/x
  3. Step 3: Cross multiply
    14,688.40x = 22,016.40 × 8,119.30
  4. Step 4: Simplify right side
    14,688.40x = 178,757,756.52
  5. Step 5: Solve for x
    x = 178,757,756.52/14,688.40
  6. Step 6: Final answer
    x = 12,170.00

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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.