Home / 18,405.75-25,398.33-10,448.31

Finding the Fourth Proportional to 18,405.75, 25,398.33 and 10,448.31

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Solution

The fourth proportional to 18,405.75, 25,398.33 and 10,448.31 is: 14,417.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.75 : 25,398.33 = 10,448.31 : x
  2. Step 2: Convert to fraction form
    18,405.75/25,398.33 = 10,448.31/x
  3. Step 3: Cross multiply
    18,405.75x = 25,398.33 × 10,448.31
  4. Step 4: Simplify right side
    18,405.75x = 265,369,625.32
  5. Step 5: Solve for x
    x = 265,369,625.32/18,405.75
  6. Step 6: Final answer
    x = 14,417.76

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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.