Home / 10,386.82-15,580.23-3,810.52

Finding the Fourth Proportional to 10,386.82, 15,580.23 and 3,810.52

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Solution

The fourth proportional to 10,386.82, 15,580.23 and 3,810.52 is: 5,715.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.82 : 15,580.23 = 3,810.52 : x
  2. Step 2: Convert to fraction form
    10,386.82/15,580.23 = 3,810.52/x
  3. Step 3: Cross multiply
    10,386.82x = 15,580.23 × 3,810.52
  4. Step 4: Simplify right side
    10,386.82x = 59,368,778.02
  5. Step 5: Solve for x
    x = 59,368,778.02/10,386.82
  6. Step 6: Final answer
    x = 5,715.78

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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.