Home / 15,751.48-21,737.49-9,038.30

Finding the Fourth Proportional to 15,751.48, 21,737.49 and 9,038.30

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Solution

The fourth proportional to 15,751.48, 21,737.49 and 9,038.30 is: 12,473.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.48 : 21,737.49 = 9,038.30 : x
  2. Step 2: Convert to fraction form
    15,751.48/21,737.49 = 9,038.30/x
  3. Step 3: Cross multiply
    15,751.48x = 21,737.49 × 9,038.30
  4. Step 4: Simplify right side
    15,751.48x = 196,469,960.98
  5. Step 5: Solve for x
    x = 196,469,960.98/15,751.48
  6. Step 6: Final answer
    x = 12,473.11

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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.