Home / 17,758.12-26,628.68-8,390.32

Finding the Fourth Proportional to 17,758.12, 26,628.68 and 8,390.32

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Solution

The fourth proportional to 17,758.12, 26,628.68 and 8,390.32 is: 12,581.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,758.12 : 26,628.68 = 8,390.32 : x
  2. Step 2: Convert to fraction form
    17,758.12/26,628.68 = 8,390.32/x
  3. Step 3: Cross multiply
    17,758.12x = 26,628.68 × 8,390.32
  4. Step 4: Simplify right side
    17,758.12x = 223,423,146.38
  5. Step 5: Solve for x
    x = 223,423,146.38/17,758.12
  6. Step 6: Final answer
    x = 12,581.46

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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.