Home / 15,224.65-21,003.86-10,122.64

Finding the Fourth Proportional to 15,224.65, 21,003.86 and 10,122.64

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Solution

The fourth proportional to 15,224.65, 21,003.86 and 10,122.64 is: 13,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,224.65 : 21,003.86 = 10,122.64 : x
  2. Step 2: Convert to fraction form
    15,224.65/21,003.86 = 10,122.64/x
  3. Step 3: Cross multiply
    15,224.65x = 21,003.86 × 10,122.64
  4. Step 4: Simplify right side
    15,224.65x = 212,614,486.19
  5. Step 5: Solve for x
    x = 212,614,486.19/15,224.65
  6. Step 6: Final answer
    x = 13,965.15

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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.