Home / 10,986.40-16,441.20-10,064.80

Finding the Fourth Proportional to 10,986.40, 16,441.20 and 10,064.80

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Solution

The fourth proportional to 10,986.40, 16,441.20 and 10,064.80 is: 15,062.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.40 : 16,441.20 = 10,064.80 : x
  2. Step 2: Convert to fraction form
    10,986.40/16,441.20 = 10,064.80/x
  3. Step 3: Cross multiply
    10,986.40x = 16,441.20 × 10,064.80
  4. Step 4: Simplify right side
    10,986.40x = 165,477,389.76
  5. Step 5: Solve for x
    x = 165,477,389.76/10,986.40
  6. Step 6: Final answer
    x = 15,062.02

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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.