Home / 18,415.46-25,412.13-10,860.06

Finding the Fourth Proportional to 18,415.46, 25,412.13 and 10,860.06

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Solution

The fourth proportional to 18,415.46, 25,412.13 and 10,860.06 is: 14,986.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.46 : 25,412.13 = 10,860.06 : x
  2. Step 2: Convert to fraction form
    18,415.46/25,412.13 = 10,860.06/x
  3. Step 3: Cross multiply
    18,415.46x = 25,412.13 × 10,860.06
  4. Step 4: Simplify right side
    18,415.46x = 275,977,256.53
  5. Step 5: Solve for x
    x = 275,977,256.53/18,415.46
  6. Step 6: Final answer
    x = 14,986.17

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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.