Home / 15,675.38-21,633.36-8,603.16

Finding the Fourth Proportional to 15,675.38, 21,633.36 and 8,603.16

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Solution

The fourth proportional to 15,675.38, 21,633.36 and 8,603.16 is: 11,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.38 : 21,633.36 = 8,603.16 : x
  2. Step 2: Convert to fraction form
    15,675.38/21,633.36 = 8,603.16/x
  3. Step 3: Cross multiply
    15,675.38x = 21,633.36 × 8,603.16
  4. Step 4: Simplify right side
    15,675.38x = 186,115,257.42
  5. Step 5: Solve for x
    x = 186,115,257.42/15,675.38
  6. Step 6: Final answer
    x = 11,873.10

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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.