Home / 10,948.14-15,083.55-10,209.42

Finding the Fourth Proportional to 10,948.14, 15,083.55 and 10,209.42

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Solution

The fourth proportional to 10,948.14, 15,083.55 and 10,209.42 is: 14,065.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,948.14 : 15,083.55 = 10,209.42 : x
  2. Step 2: Convert to fraction form
    10,948.14/15,083.55 = 10,209.42/x
  3. Step 3: Cross multiply
    10,948.14x = 15,083.55 × 10,209.42
  4. Step 4: Simplify right side
    10,948.14x = 153,994,297.04
  5. Step 5: Solve for x
    x = 153,994,297.04/10,948.14
  6. Step 6: Final answer
    x = 14,065.80

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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.