Home / 15,132.45-22,676.40-10,981.20

Finding the Fourth Proportional to 15,132.45, 22,676.40 and 10,981.20

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Solution

The fourth proportional to 15,132.45, 22,676.40 and 10,981.20 is: 16,455.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132.45 : 22,676.40 = 10,981.20 : x
  2. Step 2: Convert to fraction form
    15,132.45/22,676.40 = 10,981.20/x
  3. Step 3: Cross multiply
    15,132.45x = 22,676.40 × 10,981.20
  4. Step 4: Simplify right side
    15,132.45x = 249,014,083.68
  5. Step 5: Solve for x
    x = 249,014,083.68/15,132.45
  6. Step 6: Final answer
    x = 16,455.64

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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.