Home / 13,621.52-18,799.06-9,154.58

Finding the Fourth Proportional to 13,621.52, 18,799.06 and 9,154.58

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Solution

The fourth proportional to 13,621.52, 18,799.06 and 9,154.58 is: 12,634.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.52 : 18,799.06 = 9,154.58 : x
  2. Step 2: Convert to fraction form
    13,621.52/18,799.06 = 9,154.58/x
  3. Step 3: Cross multiply
    13,621.52x = 18,799.06 × 9,154.58
  4. Step 4: Simplify right side
    13,621.52x = 172,097,498.69
  5. Step 5: Solve for x
    x = 172,097,498.69/13,621.52
  6. Step 6: Final answer
    x = 12,634.24

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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.