Home / 10,390.47-15,576.28-4,149.16

Finding the Fourth Proportional to 10,390.47, 15,576.28 and 4,149.16

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Solution

The fourth proportional to 10,390.47, 15,576.28 and 4,149.16 is: 6,219.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.47 : 15,576.28 = 4,149.16 : x
  2. Step 2: Convert to fraction form
    10,390.47/15,576.28 = 4,149.16/x
  3. Step 3: Cross multiply
    10,390.47x = 15,576.28 × 4,149.16
  4. Step 4: Simplify right side
    10,390.47x = 64,628,477.92
  5. Step 5: Solve for x
    x = 64,628,477.92/10,390.47
  6. Step 6: Final answer
    x = 6,219.98

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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.