Home / 10,399.95-15,602.40-3,380.00

Finding the Fourth Proportional to 10,399.95, 15,602.40 and 3,380.00

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Solution

The fourth proportional to 10,399.95, 15,602.40 and 3,380.00 is: 5,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,399.95 : 15,602.40 = 3,380.00 : x
  2. Step 2: Convert to fraction form
    10,399.95/15,602.40 = 3,380.00/x
  3. Step 3: Cross multiply
    10,399.95x = 15,602.40 × 3,380.00
  4. Step 4: Simplify right side
    10,399.95x = 52,736,033.99
  5. Step 5: Solve for x
    x = 52,736,033.99/10,399.95
  6. Step 6: Final answer
    x = 5,070.80

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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.