Home / 12,904.32-19,367.28-9,215.52

Finding the Fourth Proportional to 12,904.32, 19,367.28 and 9,215.52

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Solution

The fourth proportional to 12,904.32, 19,367.28 and 9,215.52 is: 13,830.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.32 : 19,367.28 = 9,215.52 : x
  2. Step 2: Convert to fraction form
    12,904.32/19,367.28 = 9,215.52/x
  3. Step 3: Cross multiply
    12,904.32x = 19,367.28 × 9,215.52
  4. Step 4: Simplify right side
    12,904.32x = 178,479,556.19
  5. Step 5: Solve for x
    x = 178,479,556.19/12,904.32
  6. Step 6: Final answer
    x = 13,830.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.