Home / 16,820.60-25,166.10-10,988.60

Finding the Fourth Proportional to 16,820.60, 25,166.10 and 10,988.60

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Solution

The fourth proportional to 16,820.60, 25,166.10 and 10,988.60 is: 16,440.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,820.60 : 25,166.10 = 10,988.60 : x
  2. Step 2: Convert to fraction form
    16,820.60/25,166.10 = 10,988.60/x
  3. Step 3: Cross multiply
    16,820.60x = 25,166.10 × 10,988.60
  4. Step 4: Simplify right side
    16,820.60x = 276,540,206.46
  5. Step 5: Solve for x
    x = 276,540,206.46/16,820.60
  6. Step 6: Final answer
    x = 16,440.57

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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.