Home / 9,712.41-13,406.75-5,680.53

Finding the Fourth Proportional to 9,712.41, 13,406.75 and 5,680.53

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Solution

The fourth proportional to 9,712.41, 13,406.75 and 5,680.53 is: 7,841.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,712.41 : 13,406.75 = 5,680.53 : x
  2. Step 2: Convert to fraction form
    9,712.41/13,406.75 = 5,680.53/x
  3. Step 3: Cross multiply
    9,712.41x = 13,406.75 × 5,680.53
  4. Step 4: Simplify right side
    9,712.41x = 76,157,438.48
  5. Step 5: Solve for x
    x = 76,157,438.48/9,712.41
  6. Step 6: Final answer
    x = 7,841.25

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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.