Home / 10,859.20-16,267.20-10,081.60

Finding the Fourth Proportional to 10,859.20, 16,267.20 and 10,081.60

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Solution

The fourth proportional to 10,859.20, 16,267.20 and 10,081.60 is: 15,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.20 : 16,267.20 = 10,081.60 : x
  2. Step 2: Convert to fraction form
    10,859.20/16,267.20 = 10,081.60/x
  3. Step 3: Cross multiply
    10,859.20x = 16,267.20 × 10,081.60
  4. Step 4: Simplify right side
    10,859.20x = 163,999,403.52
  5. Step 5: Solve for x
    x = 163,999,403.52/10,859.20
  6. Step 6: Final answer
    x = 15,102.35

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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.