Home / 8,419.19-11,618.57-4,642.36

Finding the Fourth Proportional to 8,419.19, 11,618.57 and 4,642.36

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Solution

The fourth proportional to 8,419.19, 11,618.57 and 4,642.36 is: 6,406.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.19 : 11,618.57 = 4,642.36 : x
  2. Step 2: Convert to fraction form
    8,419.19/11,618.57 = 4,642.36/x
  3. Step 3: Cross multiply
    8,419.19x = 11,618.57 × 4,642.36
  4. Step 4: Simplify right side
    8,419.19x = 53,937,532.37
  5. Step 5: Solve for x
    x = 53,937,532.37/8,419.19
  6. Step 6: Final answer
    x = 6,406.50

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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.