Home / 9,895.35-13,655.58-5,419.38

Finding the Fourth Proportional to 9,895.35, 13,655.58 and 5,419.38

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Solution

The fourth proportional to 9,895.35, 13,655.58 and 5,419.38 is: 7,478.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,895.35 : 13,655.58 = 5,419.38 : x
  2. Step 2: Convert to fraction form
    9,895.35/13,655.58 = 5,419.38/x
  3. Step 3: Cross multiply
    9,895.35x = 13,655.58 × 5,419.38
  4. Step 4: Simplify right side
    9,895.35x = 74,004,777.14
  5. Step 5: Solve for x
    x = 74,004,777.14/9,895.35
  6. Step 6: Final answer
    x = 7,478.74

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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.