Home / 10,486.86-15,716.44-5,555.17

Finding the Fourth Proportional to 10,486.86, 15,716.44 and 5,555.17

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Solution

The fourth proportional to 10,486.86, 15,716.44 and 5,555.17 is: 8,325.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,486.86 : 15,716.44 = 5,555.17 : x
  2. Step 2: Convert to fraction form
    10,486.86/15,716.44 = 5,555.17/x
  3. Step 3: Cross multiply
    10,486.86x = 15,716.44 × 5,555.17
  4. Step 4: Simplify right side
    10,486.86x = 87,307,495.99
  5. Step 5: Solve for x
    x = 87,307,495.99/10,486.86
  6. Step 6: Final answer
    x = 8,325.42

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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.