Home / 9,995.60-14,988.85-3,420.02

Finding the Fourth Proportional to 9,995.60, 14,988.85 and 3,420.02

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Solution

The fourth proportional to 9,995.60, 14,988.85 and 3,420.02 is: 5,128.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,995.60 : 14,988.85 = 3,420.02 : x
  2. Step 2: Convert to fraction form
    9,995.60/14,988.85 = 3,420.02/x
  3. Step 3: Cross multiply
    9,995.60x = 14,988.85 × 3,420.02
  4. Step 4: Simplify right side
    9,995.60x = 51,262,195.70
  5. Step 5: Solve for x
    x = 51,262,195.70/9,995.60
  6. Step 6: Final answer
    x = 5,128.47

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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.