Home / 8,275.69-11,420.83-4,642.08

Finding the Fourth Proportional to 8,275.69, 11,420.83 and 4,642.08

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Solution

The fourth proportional to 8,275.69, 11,420.83 and 4,642.08 is: 6,406.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.69 : 11,420.83 = 4,642.08 : x
  2. Step 2: Convert to fraction form
    8,275.69/11,420.83 = 4,642.08/x
  3. Step 3: Cross multiply
    8,275.69x = 11,420.83 × 4,642.08
  4. Step 4: Simplify right side
    8,275.69x = 53,016,406.53
  5. Step 5: Solve for x
    x = 53,016,406.53/8,275.69
  6. Step 6: Final answer
    x = 6,406.29

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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.