Home / 15,235.80-21,036.30-11,882.36

Finding the Fourth Proportional to 15,235.80, 21,036.30 and 11,882.36

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Solution

The fourth proportional to 15,235.80, 21,036.30 and 11,882.36 is: 16,406.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235.80 : 21,036.30 = 11,882.36 : x
  2. Step 2: Convert to fraction form
    15,235.80/21,036.30 = 11,882.36/x
  3. Step 3: Cross multiply
    15,235.80x = 21,036.30 × 11,882.36
  4. Step 4: Simplify right side
    15,235.80x = 249,960,889.67
  5. Step 5: Solve for x
    x = 249,960,889.67/15,235.80
  6. Step 6: Final answer
    x = 16,406.15

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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.