Home / 10,477.32-15,716.88-2,686.12

Finding the Fourth Proportional to 10,477.32, 15,716.88 and 2,686.12

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Solution

The fourth proportional to 10,477.32, 15,716.88 and 2,686.12 is: 4,029.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,477.32 : 15,716.88 = 2,686.12 : x
  2. Step 2: Convert to fraction form
    10,477.32/15,716.88 = 2,686.12/x
  3. Step 3: Cross multiply
    10,477.32x = 15,716.88 × 2,686.12
  4. Step 4: Simplify right side
    10,477.32x = 42,217,425.71
  5. Step 5: Solve for x
    x = 42,217,425.71/10,477.32
  6. Step 6: Final answer
    x = 4,029.41

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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.