Home / 9,720.75-13,402.36-6,358.24

Finding the Fourth Proportional to 9,720.75, 13,402.36 and 6,358.24

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Solution

The fourth proportional to 9,720.75, 13,402.36 and 6,358.24 is: 8,766.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.75 : 13,402.36 = 6,358.24 : x
  2. Step 2: Convert to fraction form
    9,720.75/13,402.36 = 6,358.24/x
  3. Step 3: Cross multiply
    9,720.75x = 13,402.36 × 6,358.24
  4. Step 4: Simplify right side
    9,720.75x = 85,215,421.45
  5. Step 5: Solve for x
    x = 85,215,421.45/9,720.75
  6. Step 6: Final answer
    x = 8,766.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.