Home / 10,459.41-15,685.78-3,437.80

Finding the Fourth Proportional to 10,459.41, 15,685.78 and 3,437.80

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Solution

The fourth proportional to 10,459.41, 15,685.78 and 3,437.80 is: 5,155.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,459.41 : 15,685.78 = 3,437.80 : x
  2. Step 2: Convert to fraction form
    10,459.41/15,685.78 = 3,437.80/x
  3. Step 3: Cross multiply
    10,459.41x = 15,685.78 × 3,437.80
  4. Step 4: Simplify right side
    10,459.41x = 53,924,574.48
  5. Step 5: Solve for x
    x = 53,924,574.48/10,459.41
  6. Step 6: Final answer
    x = 5,155.60

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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.