Home / 10,446.47-15,659.71-3,870.89

Finding the Fourth Proportional to 10,446.47, 15,659.71 and 3,870.89

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Solution

The fourth proportional to 10,446.47, 15,659.71 and 3,870.89 is: 5,802.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,446.47 : 15,659.71 = 3,870.89 : x
  2. Step 2: Convert to fraction form
    10,446.47/15,659.71 = 3,870.89/x
  3. Step 3: Cross multiply
    10,446.47x = 15,659.71 × 3,870.89
  4. Step 4: Simplify right side
    10,446.47x = 60,616,926.87
  5. Step 5: Solve for x
    x = 60,616,926.87/10,446.47
  6. Step 6: Final answer
    x = 5,802.63

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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.