Home / 10,275.45-15,409.53-3,699.87

Finding the Fourth Proportional to 10,275.45, 15,409.53 and 3,699.87

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Solution

The fourth proportional to 10,275.45, 15,409.53 and 3,699.87 is: 5,548.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,275.45 : 15,409.53 = 3,699.87 : x
  2. Step 2: Convert to fraction form
    10,275.45/15,409.53 = 3,699.87/x
  3. Step 3: Cross multiply
    10,275.45x = 15,409.53 × 3,699.87
  4. Step 4: Simplify right side
    10,275.45x = 57,013,257.76
  5. Step 5: Solve for x
    x = 57,013,257.76/10,275.45
  6. Step 6: Final answer
    x = 5,548.49

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1.5x scale

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.