Home / 11,321.60-16,891.54-10,074.20

Finding the Fourth Proportional to 11,321.60, 16,891.54 and 10,074.20

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Solution

The fourth proportional to 11,321.60, 16,891.54 and 10,074.20 is: 15,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.60 : 16,891.54 = 10,074.20 : x
  2. Step 2: Convert to fraction form
    11,321.60/16,891.54 = 10,074.20/x
  3. Step 3: Cross multiply
    11,321.60x = 16,891.54 × 10,074.20
  4. Step 4: Simplify right side
    11,321.60x = 170,168,752.27
  5. Step 5: Solve for x
    x = 170,168,752.27/11,321.60
  6. Step 6: Final answer
    x = 15,030.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.