Home / 15,233.58-21,015.98-11,870.57

Finding the Fourth Proportional to 15,233.58, 21,015.98 and 11,870.57

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Solution

The fourth proportional to 15,233.58, 21,015.98 and 11,870.57 is: 16,376.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,233.58 : 21,015.98 = 11,870.57 : x
  2. Step 2: Convert to fraction form
    15,233.58/21,015.98 = 11,870.57/x
  3. Step 3: Cross multiply
    15,233.58x = 21,015.98 × 11,870.57
  4. Step 4: Simplify right side
    15,233.58x = 249,471,497.28
  5. Step 5: Solve for x
    x = 249,471,497.28/15,233.58
  6. Step 6: Final answer
    x = 16,376.42

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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.