Home / 15,675.93-21,633.08-8,602.61

Finding the Fourth Proportional to 15,675.93, 21,633.08 and 8,602.61

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Solution

The fourth proportional to 15,675.93, 21,633.08 and 8,602.61 is: 11,871.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.93 : 21,633.08 = 8,602.61 : x
  2. Step 2: Convert to fraction form
    15,675.93/21,633.08 = 8,602.61/x
  3. Step 3: Cross multiply
    15,675.93x = 21,633.08 × 8,602.61
  4. Step 4: Simplify right side
    15,675.93x = 186,100,799.16
  5. Step 5: Solve for x
    x = 186,100,799.16/15,675.93
  6. Step 6: Final answer
    x = 11,871.75

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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.