Home / 14,870.20-22,310.10-9,945.40

Finding the Fourth Proportional to 14,870.20, 22,310.10 and 9,945.40

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Solution

The fourth proportional to 14,870.20, 22,310.10 and 9,945.40 is: 14,921.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,870.20 : 22,310.10 = 9,945.40 : x
  2. Step 2: Convert to fraction form
    14,870.20/22,310.10 = 9,945.40/x
  3. Step 3: Cross multiply
    14,870.20x = 22,310.10 × 9,945.40
  4. Step 4: Simplify right side
    14,870.20x = 221,882,868.54
  5. Step 5: Solve for x
    x = 221,882,868.54/14,870.20
  6. Step 6: Final answer
    x = 14,921.31

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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.