Home / 18,395.88-25,386.57-10,012.38

Finding the Fourth Proportional to 18,395.88, 25,386.57 and 10,012.38

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Solution

The fourth proportional to 18,395.88, 25,386.57 and 10,012.38 is: 13,817.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,395.88 : 25,386.57 = 10,012.38 : x
  2. Step 2: Convert to fraction form
    18,395.88/25,386.57 = 10,012.38/x
  3. Step 3: Cross multiply
    18,395.88x = 25,386.57 × 10,012.38
  4. Step 4: Simplify right side
    18,395.88x = 254,179,985.74
  5. Step 5: Solve for x
    x = 254,179,985.74/18,395.88
  6. Step 6: Final answer
    x = 13,817.22

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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.