Home / 10,421.55-15,636.33-6,264.54

Finding the Fourth Proportional to 10,421.55, 15,636.33 and 6,264.54

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Solution

The fourth proportional to 10,421.55, 15,636.33 and 6,264.54 is: 9,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.55 : 15,636.33 = 6,264.54 : x
  2. Step 2: Convert to fraction form
    10,421.55/15,636.33 = 6,264.54/x
  3. Step 3: Cross multiply
    10,421.55x = 15,636.33 × 6,264.54
  4. Step 4: Simplify right side
    10,421.55x = 97,954,414.74
  5. Step 5: Solve for x
    x = 97,954,414.74/10,421.55
  6. Step 6: Final answer
    x = 9,399.22

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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.