Home / 10,386.63-15,579.97-4,147.15

Finding the Fourth Proportional to 10,386.63, 15,579.97 and 4,147.15

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Solution

The fourth proportional to 10,386.63, 15,579.97 and 4,147.15 is: 6,220.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.63 : 15,579.97 = 4,147.15 : x
  2. Step 2: Convert to fraction form
    10,386.63/15,579.97 = 4,147.15/x
  3. Step 3: Cross multiply
    10,386.63x = 15,579.97 × 4,147.15
  4. Step 4: Simplify right side
    10,386.63x = 64,612,412.90
  5. Step 5: Solve for x
    x = 64,612,412.90/10,386.63
  6. Step 6: Final answer
    x = 6,220.73

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1.5x scale

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.