Home / 15,851.74-21,869.16-10,185.70

Finding the Fourth Proportional to 15,851.74, 21,869.16 and 10,185.70

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Solution

The fourth proportional to 15,851.74, 21,869.16 and 10,185.70 is: 14,052.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,851.74 : 21,869.16 = 10,185.70 : x
  2. Step 2: Convert to fraction form
    15,851.74/21,869.16 = 10,185.70/x
  3. Step 3: Cross multiply
    15,851.74x = 21,869.16 × 10,185.70
  4. Step 4: Simplify right side
    15,851.74x = 222,752,703.01
  5. Step 5: Solve for x
    x = 222,752,703.01/15,851.74
  6. Step 6: Final answer
    x = 14,052.26

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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.