Home / 15,842.98-21,825.18-13,325.14

Finding the Fourth Proportional to 15,842.98, 21,825.18 and 13,325.14

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Solution

The fourth proportional to 15,842.98, 21,825.18 and 13,325.14 is: 18,356.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,842.98 : 21,825.18 = 13,325.14 : x
  2. Step 2: Convert to fraction form
    15,842.98/21,825.18 = 13,325.14/x
  3. Step 3: Cross multiply
    15,842.98x = 21,825.18 × 13,325.14
  4. Step 4: Simplify right side
    15,842.98x = 290,823,579.03
  5. Step 5: Solve for x
    x = 290,823,579.03/15,842.98
  6. Step 6: Final answer
    x = 18,356.62

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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.