Home / 9,715.36-13,408.08-5,523.60

Finding the Fourth Proportional to 9,715.36, 13,408.08 and 5,523.60

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Solution

The fourth proportional to 9,715.36, 13,408.08 and 5,523.60 is: 7,623.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,715.36 : 13,408.08 = 5,523.60 : x
  2. Step 2: Convert to fraction form
    9,715.36/13,408.08 = 5,523.60/x
  3. Step 3: Cross multiply
    9,715.36x = 13,408.08 × 5,523.60
  4. Step 4: Simplify right side
    9,715.36x = 74,060,870.69
  5. Step 5: Solve for x
    x = 74,060,870.69/9,715.36
  6. Step 6: Final answer
    x = 7,623.07

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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.