Home / 15,009.20-22,513.80-13,478.30

Finding the Fourth Proportional to 15,009.20, 22,513.80 and 13,478.30

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Solution

The fourth proportional to 15,009.20, 22,513.80 and 13,478.30 is: 20,217.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009.20 : 22,513.80 = 13,478.30 : x
  2. Step 2: Convert to fraction form
    15,009.20/22,513.80 = 13,478.30/x
  3. Step 3: Cross multiply
    15,009.20x = 22,513.80 × 13,478.30
  4. Step 4: Simplify right side
    15,009.20x = 303,447,750.54
  5. Step 5: Solve for x
    x = 303,447,750.54/15,009.20
  6. Step 6: Final answer
    x = 20,217.45

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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.