Home / 13,595.49-20,367.18-10,470.78

Finding the Fourth Proportional to 13,595.49, 20,367.18 and 10,470.78

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Solution

The fourth proportional to 13,595.49, 20,367.18 and 10,470.78 is: 15,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,595.49 : 20,367.18 = 10,470.78 : x
  2. Step 2: Convert to fraction form
    13,595.49/20,367.18 = 10,470.78/x
  3. Step 3: Cross multiply
    13,595.49x = 20,367.18 × 10,470.78
  4. Step 4: Simplify right side
    13,595.49x = 213,260,261.00
  5. Step 5: Solve for x
    x = 213,260,261.00/13,595.49
  6. Step 6: Final answer
    x = 15,686.10

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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.