Home / 15,424.54-21,284.58-9,050.47

Finding the Fourth Proportional to 15,424.54, 21,284.58 and 9,050.47

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Solution

The fourth proportional to 15,424.54, 21,284.58 and 9,050.47 is: 12,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,424.54 : 21,284.58 = 9,050.47 : x
  2. Step 2: Convert to fraction form
    15,424.54/21,284.58 = 9,050.47/x
  3. Step 3: Cross multiply
    15,424.54x = 21,284.58 × 9,050.47
  4. Step 4: Simplify right side
    15,424.54x = 192,635,452.75
  5. Step 5: Solve for x
    x = 192,635,452.75/15,424.54
  6. Step 6: Final answer
    x = 12,488.89

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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.