Home / 15,909.69-21,947.85-10,880.94

Finding the Fourth Proportional to 15,909.69, 21,947.85 and 10,880.94

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Solution

The fourth proportional to 15,909.69, 21,947.85 and 10,880.94 is: 15,010.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,909.69 : 21,947.85 = 10,880.94 : x
  2. Step 2: Convert to fraction form
    15,909.69/21,947.85 = 10,880.94/x
  3. Step 3: Cross multiply
    15,909.69x = 21,947.85 × 10,880.94
  4. Step 4: Simplify right side
    15,909.69x = 238,813,238.98
  5. Step 5: Solve for x
    x = 238,813,238.98/15,909.69
  6. Step 6: Final answer
    x = 15,010.55

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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.