Home / 15,867.83-21,896.76-9,153.06

Finding the Fourth Proportional to 15,867.83, 21,896.76 and 9,153.06

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Solution

The fourth proportional to 15,867.83, 21,896.76 and 9,153.06 is: 12,630.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,867.83 : 21,896.76 = 9,153.06 : x
  2. Step 2: Convert to fraction form
    15,867.83/21,896.76 = 9,153.06/x
  3. Step 3: Cross multiply
    15,867.83x = 21,896.76 × 9,153.06
  4. Step 4: Simplify right side
    15,867.83x = 200,422,337.67
  5. Step 5: Solve for x
    x = 200,422,337.67/15,867.83
  6. Step 6: Final answer
    x = 12,630.73

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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.