Home / 15,763.72-21,762.64-11,510.50

Finding the Fourth Proportional to 15,763.72, 21,762.64 and 11,510.50

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Solution

The fourth proportional to 15,763.72, 21,762.64 and 11,510.50 is: 15,890.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,763.72 : 21,762.64 = 11,510.50 : x
  2. Step 2: Convert to fraction form
    15,763.72/21,762.64 = 11,510.50/x
  3. Step 3: Cross multiply
    15,763.72x = 21,762.64 × 11,510.50
  4. Step 4: Simplify right side
    15,763.72x = 250,498,867.72
  5. Step 5: Solve for x
    x = 250,498,867.72/15,763.72
  6. Step 6: Final answer
    x = 15,890.85

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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.