Home / 10,386.64-15,570.68-3,811.30

Finding the Fourth Proportional to 10,386.64, 15,570.68 and 3,811.30

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Solution

The fourth proportional to 10,386.64, 15,570.68 and 3,811.30 is: 5,713.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.64 : 15,570.68 = 3,811.30 : x
  2. Step 2: Convert to fraction form
    10,386.64/15,570.68 = 3,811.30/x
  3. Step 3: Cross multiply
    10,386.64x = 15,570.68 × 3,811.30
  4. Step 4: Simplify right side
    10,386.64x = 59,344,532.68
  5. Step 5: Solve for x
    x = 59,344,532.68/10,386.64
  6. Step 6: Final answer
    x = 5,713.54

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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.