Home / 15,674.29-21,630.23-8,600.65

Finding the Fourth Proportional to 15,674.29, 21,630.23 and 8,600.65

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Solution

The fourth proportional to 15,674.29, 21,630.23 and 8,600.65 is: 11,868.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,674.29 : 21,630.23 = 8,600.65 : x
  2. Step 2: Convert to fraction form
    15,674.29/21,630.23 = 8,600.65/x
  3. Step 3: Cross multiply
    15,674.29x = 21,630.23 × 8,600.65
  4. Step 4: Simplify right side
    15,674.29x = 186,033,994.65
  5. Step 5: Solve for x
    x = 186,033,994.65/15,674.29
  6. Step 6: Final answer
    x = 11,868.74

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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.