Home / 13,295.40-19,930.30-10,332.20

Finding the Fourth Proportional to 13,295.40, 19,930.30 and 10,332.20

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Solution

The fourth proportional to 13,295.40, 19,930.30 and 10,332.20 is: 15,488.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.40 : 19,930.30 = 10,332.20 : x
  2. Step 2: Convert to fraction form
    13,295.40/19,930.30 = 10,332.20/x
  3. Step 3: Cross multiply
    13,295.40x = 19,930.30 × 10,332.20
  4. Step 4: Simplify right side
    13,295.40x = 205,923,845.66
  5. Step 5: Solve for x
    x = 205,923,845.66/13,295.40
  6. Step 6: Final answer
    x = 15,488.35

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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.