Home / 18,398.12-25,389.86-10,015.08

Finding the Fourth Proportional to 18,398.12, 25,389.86 and 10,015.08

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Solution

The fourth proportional to 18,398.12, 25,389.86 and 10,015.08 is: 13,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.12 : 25,389.86 = 10,015.08 : x
  2. Step 2: Convert to fraction form
    18,398.12/25,389.86 = 10,015.08/x
  3. Step 3: Cross multiply
    18,398.12x = 25,389.86 × 10,015.08
  4. Step 4: Simplify right side
    18,398.12x = 254,281,479.09
  5. Step 5: Solve for x
    x = 254,281,479.09/18,398.12
  6. Step 6: Final answer
    x = 13,821.06

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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.