Home / 15,641.70-21,583.54-12,463.06

Finding the Fourth Proportional to 15,641.70, 21,583.54 and 12,463.06

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Solution

The fourth proportional to 15,641.70, 21,583.54 and 12,463.06 is: 17,197.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,641.70 : 21,583.54 = 12,463.06 : x
  2. Step 2: Convert to fraction form
    15,641.70/21,583.54 = 12,463.06/x
  3. Step 3: Cross multiply
    15,641.70x = 21,583.54 × 12,463.06
  4. Step 4: Simplify right side
    15,641.70x = 268,996,954.03
  5. Step 5: Solve for x
    x = 268,996,954.03/15,641.70
  6. Step 6: Final answer
    x = 17,197.42

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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.