Home / 10,971.20-16,456.80-4,402.10

Finding the Fourth Proportional to 10,971.20, 16,456.80 and 4,402.10

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Solution

The fourth proportional to 10,971.20, 16,456.80 and 4,402.10 is: 6,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.20 : 16,456.80 = 4,402.10 : x
  2. Step 2: Convert to fraction form
    10,971.20/16,456.80 = 4,402.10/x
  3. Step 3: Cross multiply
    10,971.20x = 16,456.80 × 4,402.10
  4. Step 4: Simplify right side
    10,971.20x = 72,444,479.28
  5. Step 5: Solve for x
    x = 72,444,479.28/10,971.20
  6. Step 6: Final answer
    x = 6,603.15

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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.