Home / 15,799.64-21,803.06-8,725.91

Finding the Fourth Proportional to 15,799.64, 21,803.06 and 8,725.91

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Solution

The fourth proportional to 15,799.64, 21,803.06 and 8,725.91 is: 12,041.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,799.64 : 21,803.06 = 8,725.91 : x
  2. Step 2: Convert to fraction form
    15,799.64/21,803.06 = 8,725.91/x
  3. Step 3: Cross multiply
    15,799.64x = 21,803.06 × 8,725.91
  4. Step 4: Simplify right side
    15,799.64x = 190,251,495.66
  5. Step 5: Solve for x
    x = 190,251,495.66/15,799.64
  6. Step 6: Final answer
    x = 12,041.51

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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.