Home / 8,642.85-11,927.36-4,866.15

Finding the Fourth Proportional to 8,642.85, 11,927.36 and 4,866.15

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Solution

The fourth proportional to 8,642.85, 11,927.36 and 4,866.15 is: 6,715.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642.85 : 11,927.36 = 4,866.15 : x
  2. Step 2: Convert to fraction form
    8,642.85/11,927.36 = 4,866.15/x
  3. Step 3: Cross multiply
    8,642.85x = 11,927.36 × 4,866.15
  4. Step 4: Simplify right side
    8,642.85x = 58,040,322.86
  5. Step 5: Solve for x
    x = 58,040,322.86/8,642.85
  6. Step 6: Final answer
    x = 6,715.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.