Home / 10,364.30-15,546.45-3,438.80

Finding the Fourth Proportional to 10,364.30, 15,546.45 and 3,438.80

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Solution

The fourth proportional to 10,364.30, 15,546.45 and 3,438.80 is: 5,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,364.30 : 15,546.45 = 3,438.80 : x
  2. Step 2: Convert to fraction form
    10,364.30/15,546.45 = 3,438.80/x
  3. Step 3: Cross multiply
    10,364.30x = 15,546.45 × 3,438.80
  4. Step 4: Simplify right side
    10,364.30x = 53,461,132.26
  5. Step 5: Solve for x
    x = 53,461,132.26/10,364.30
  6. Step 6: Final answer
    x = 5,158.20

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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.