Home / 18,421.22-27,612.16-10,506.69

Finding the Fourth Proportional to 18,421.22, 27,612.16 and 10,506.69

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Solution

The fourth proportional to 18,421.22, 27,612.16 and 10,506.69 is: 15,748.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.22 : 27,612.16 = 10,506.69 : x
  2. Step 2: Convert to fraction form
    18,421.22/27,612.16 = 10,506.69/x
  3. Step 3: Cross multiply
    18,421.22x = 27,612.16 × 10,506.69
  4. Step 4: Simplify right side
    18,421.22x = 290,112,405.35
  5. Step 5: Solve for x
    x = 290,112,405.35/18,421.22
  6. Step 6: Final answer
    x = 15,748.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.