Home / 15,550.14-21,459.42-9,578.42

Finding the Fourth Proportional to 15,550.14, 21,459.42 and 9,578.42

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Solution

The fourth proportional to 15,550.14, 21,459.42 and 9,578.42 is: 13,218.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,550.14 : 21,459.42 = 9,578.42 : x
  2. Step 2: Convert to fraction form
    15,550.14/21,459.42 = 9,578.42/x
  3. Step 3: Cross multiply
    15,550.14x = 21,459.42 × 9,578.42
  4. Step 4: Simplify right side
    15,550.14x = 205,547,230.42
  5. Step 5: Solve for x
    x = 205,547,230.42/15,550.14
  6. Step 6: Final answer
    x = 13,218.35

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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.