Home / 10,445.10-15,668.56-3,871.34

Finding the Fourth Proportional to 10,445.10, 15,668.56 and 3,871.34

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Solution

The fourth proportional to 10,445.10, 15,668.56 and 3,871.34 is: 5,807.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.10 : 15,668.56 = 3,871.34 : x
  2. Step 2: Convert to fraction form
    10,445.10/15,668.56 = 3,871.34/x
  3. Step 3: Cross multiply
    10,445.10x = 15,668.56 × 3,871.34
  4. Step 4: Simplify right side
    10,445.10x = 60,658,367.08
  5. Step 5: Solve for x
    x = 60,658,367.08/10,445.10
  6. Step 6: Final answer
    x = 5,807.35

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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.