Home / 9,010.24-12,438.54-6,989.08

Finding the Fourth Proportional to 9,010.24, 12,438.54 and 6,989.08

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Solution

The fourth proportional to 9,010.24, 12,438.54 and 6,989.08 is: 9,648.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,010.24 : 12,438.54 = 6,989.08 : x
  2. Step 2: Convert to fraction form
    9,010.24/12,438.54 = 6,989.08/x
  3. Step 3: Cross multiply
    9,010.24x = 12,438.54 × 6,989.08
  4. Step 4: Simplify right side
    9,010.24x = 86,933,951.14
  5. Step 5: Solve for x
    x = 86,933,951.14/9,010.24
  6. Step 6: Final answer
    x = 9,648.35

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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.