Home / 8,419.55-11,618.08-4,642.46

Finding the Fourth Proportional to 8,419.55, 11,618.08 and 4,642.46

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Solution

The fourth proportional to 8,419.55, 11,618.08 and 4,642.46 is: 6,406.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.55 : 11,618.08 = 4,642.46 : x
  2. Step 2: Convert to fraction form
    8,419.55/11,618.08 = 4,642.46/x
  3. Step 3: Cross multiply
    8,419.55x = 11,618.08 × 4,642.46
  4. Step 4: Simplify right side
    8,419.55x = 53,936,445.55
  5. Step 5: Solve for x
    x = 53,936,445.55/8,419.55
  6. Step 6: Final answer
    x = 6,406.10

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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.