Home / 14,799.20-20,403.84-10,555.10

Finding the Fourth Proportional to 14,799.20, 20,403.84 and 10,555.10

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Solution

The fourth proportional to 14,799.20, 20,403.84 and 10,555.10 is: 14,552.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,799.20 : 20,403.84 = 10,555.10 : x
  2. Step 2: Convert to fraction form
    14,799.20/20,403.84 = 10,555.10/x
  3. Step 3: Cross multiply
    14,799.20x = 20,403.84 × 10,555.10
  4. Step 4: Simplify right side
    14,799.20x = 215,364,571.58
  5. Step 5: Solve for x
    x = 215,364,571.58/14,799.20
  6. Step 6: Final answer
    x = 14,552.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.