Home / 9,712.25-13,453.67-9,515.42

Finding the Fourth Proportional to 9,712.25, 13,453.67 and 9,515.42

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Solution

The fourth proportional to 9,712.25, 13,453.67 and 9,515.42 is: 13,181.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,712.25 : 13,453.67 = 9,515.42 : x
  2. Step 2: Convert to fraction form
    9,712.25/13,453.67 = 9,515.42/x
  3. Step 3: Cross multiply
    9,712.25x = 13,453.67 × 9,515.42
  4. Step 4: Simplify right side
    9,712.25x = 128,017,263.17
  5. Step 5: Solve for x
    x = 128,017,263.17/9,712.25
  6. Step 6: Final answer
    x = 13,181.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.