Home / 9,715.60-13,401.48-6,356.80

Finding the Fourth Proportional to 9,715.60, 13,401.48 and 6,356.80

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Solution

The fourth proportional to 9,715.60, 13,401.48 and 6,356.80 is: 8,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,715.60 : 13,401.48 = 6,356.80 : x
  2. Step 2: Convert to fraction form
    9,715.60/13,401.48 = 6,356.80/x
  3. Step 3: Cross multiply
    9,715.60x = 13,401.48 × 6,356.80
  4. Step 4: Simplify right side
    9,715.60x = 85,190,528.06
  5. Step 5: Solve for x
    x = 85,190,528.06/9,715.60
  6. Step 6: Final answer
    x = 8,768.43

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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.