Home / 15,748.68-21,739.86-11,264.64

Finding the Fourth Proportional to 15,748.68, 21,739.86 and 11,264.64

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Solution

The fourth proportional to 15,748.68, 21,739.86 and 11,264.64 is: 15,549.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.68 : 21,739.86 = 11,264.64 : x
  2. Step 2: Convert to fraction form
    15,748.68/21,739.86 = 11,264.64/x
  3. Step 3: Cross multiply
    15,748.68x = 21,739.86 × 11,264.64
  4. Step 4: Simplify right side
    15,748.68x = 244,891,696.55
  5. Step 5: Solve for x
    x = 244,891,696.55/15,748.68
  6. Step 6: Final answer
    x = 15,549.98

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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.