Home / 15,851.65-21,889.82-10,199.62

Finding the Fourth Proportional to 15,851.65, 21,889.82 and 10,199.62

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Solution

The fourth proportional to 15,851.65, 21,889.82 and 10,199.62 is: 14,084.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,851.65 : 21,889.82 = 10,199.62 : x
  2. Step 2: Convert to fraction form
    15,851.65/21,889.82 = 10,199.62/x
  3. Step 3: Cross multiply
    15,851.65x = 21,889.82 × 10,199.62
  4. Step 4: Simplify right side
    15,851.65x = 223,267,870.04
  5. Step 5: Solve for x
    x = 223,267,870.04/15,851.65
  6. Step 6: Final answer
    x = 14,084.84

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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.