Home / 10,689.40-16,023.30-4,850.20

Finding the Fourth Proportional to 10,689.40, 16,023.30 and 4,850.20

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Solution

The fourth proportional to 10,689.40, 16,023.30 and 4,850.20 is: 7,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,689.40 : 16,023.30 = 4,850.20 : x
  2. Step 2: Convert to fraction form
    10,689.40/16,023.30 = 4,850.20/x
  3. Step 3: Cross multiply
    10,689.40x = 16,023.30 × 4,850.20
  4. Step 4: Simplify right side
    10,689.40x = 77,716,209.66
  5. Step 5: Solve for x
    x = 77,716,209.66/10,689.40
  6. Step 6: Final answer
    x = 7,270.40

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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.