Home / 10,386.28-15,585.56-4,149.23

Finding the Fourth Proportional to 10,386.28, 15,585.56 and 4,149.23

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Solution

The fourth proportional to 10,386.28, 15,585.56 and 4,149.23 is: 6,226.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.28 : 15,585.56 = 4,149.23 : x
  2. Step 2: Convert to fraction form
    10,386.28/15,585.56 = 4,149.23/x
  3. Step 3: Cross multiply
    10,386.28x = 15,585.56 × 4,149.23
  4. Step 4: Simplify right side
    10,386.28x = 64,668,013.34
  5. Step 5: Solve for x
    x = 64,668,013.34/10,386.28
  6. Step 6: Final answer
    x = 6,226.29

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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.