Home / 10,535.48-15,803.06-3,139.98

Finding the Fourth Proportional to 10,535.48, 15,803.06 and 3,139.98

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Solution

The fourth proportional to 10,535.48, 15,803.06 and 3,139.98 is: 4,709.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,535.48 : 15,803.06 = 3,139.98 : x
  2. Step 2: Convert to fraction form
    10,535.48/15,803.06 = 3,139.98/x
  3. Step 3: Cross multiply
    10,535.48x = 15,803.06 × 3,139.98
  4. Step 4: Simplify right side
    10,535.48x = 49,621,276.64
  5. Step 5: Solve for x
    x = 49,621,276.64/10,535.48
  6. Step 6: Final answer
    x = 4,709.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.