Home / 15,224.95-21,009.27-9,255.79

Finding the Fourth Proportional to 15,224.95, 21,009.27 and 9,255.79

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Solution

The fourth proportional to 15,224.95, 21,009.27 and 9,255.79 is: 12,772.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,224.95 : 21,009.27 = 9,255.79 : x
  2. Step 2: Convert to fraction form
    15,224.95/21,009.27 = 9,255.79/x
  3. Step 3: Cross multiply
    15,224.95x = 21,009.27 × 9,255.79
  4. Step 4: Simplify right side
    15,224.95x = 194,457,391.17
  5. Step 5: Solve for x
    x = 194,457,391.17/15,224.95
  6. Step 6: Final answer
    x = 12,772.28

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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.