Home / 15,675.30-21,631.95-8,601.75

Finding the Fourth Proportional to 15,675.30, 21,631.95 and 8,601.75

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Solution

The fourth proportional to 15,675.30, 21,631.95 and 8,601.75 is: 11,870.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.30 : 21,631.95 = 8,601.75 : x
  2. Step 2: Convert to fraction form
    15,675.30/21,631.95 = 8,601.75/x
  3. Step 3: Cross multiply
    15,675.30x = 21,631.95 × 8,601.75
  4. Step 4: Simplify right side
    15,675.30x = 186,072,625.91
  5. Step 5: Solve for x
    x = 186,072,625.91/15,675.30
  6. Step 6: Final answer
    x = 11,870.43

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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.