Home / 10,384.89-15,579.66-2,988.78

Finding the Fourth Proportional to 10,384.89, 15,579.66 and 2,988.78

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Solution

The fourth proportional to 10,384.89, 15,579.66 and 2,988.78 is: 4,483.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,384.89 : 15,579.66 = 2,988.78 : x
  2. Step 2: Convert to fraction form
    10,384.89/15,579.66 = 2,988.78/x
  3. Step 3: Cross multiply
    10,384.89x = 15,579.66 × 2,988.78
  4. Step 4: Simplify right side
    10,384.89x = 46,564,176.21
  5. Step 5: Solve for x
    x = 46,564,176.21/10,384.89
  6. Step 6: Final answer
    x = 4,483.84

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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.