Home / 15,530.03-21,425.97-10,155.61

Finding the Fourth Proportional to 15,530.03, 21,425.97 and 10,155.61

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Solution

The fourth proportional to 15,530.03, 21,425.97 and 10,155.61 is: 14,011.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,530.03 : 21,425.97 = 10,155.61 : x
  2. Step 2: Convert to fraction form
    15,530.03/21,425.97 = 10,155.61/x
  3. Step 3: Cross multiply
    15,530.03x = 21,425.97 × 10,155.61
  4. Step 4: Simplify right side
    15,530.03x = 217,593,741.63
  5. Step 5: Solve for x
    x = 217,593,741.63/15,530.03
  6. Step 6: Final answer
    x = 14,011.16

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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.