Home / 9,628.89-13,246.25-7,856.61

Finding the Fourth Proportional to 9,628.89, 13,246.25 and 7,856.61

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Solution

The fourth proportional to 9,628.89, 13,246.25 and 7,856.61 is: 10,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,628.89 : 13,246.25 = 7,856.61 : x
  2. Step 2: Convert to fraction form
    9,628.89/13,246.25 = 7,856.61/x
  3. Step 3: Cross multiply
    9,628.89x = 13,246.25 × 7,856.61
  4. Step 4: Simplify right side
    9,628.89x = 104,070,580.93
  5. Step 5: Solve for x
    x = 104,070,580.93/9,628.89
  6. Step 6: Final answer
    x = 10,808.16

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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.