Home / 15,813.14-21,826.66-10,439.50

Finding the Fourth Proportional to 15,813.14, 21,826.66 and 10,439.50

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Solution

The fourth proportional to 15,813.14, 21,826.66 and 10,439.50 is: 14,409.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,813.14 : 21,826.66 = 10,439.50 : x
  2. Step 2: Convert to fraction form
    15,813.14/21,826.66 = 10,439.50/x
  3. Step 3: Cross multiply
    15,813.14x = 21,826.66 × 10,439.50
  4. Step 4: Simplify right side
    15,813.14x = 227,859,307.94
  5. Step 5: Solve for x
    x = 227,859,307.94/15,813.14
  6. Step 6: Final answer
    x = 14,409.50

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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.