Home / 9,419.07-12,998.30-5,440.08

Finding the Fourth Proportional to 9,419.07, 12,998.30 and 5,440.08

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Solution

The fourth proportional to 9,419.07, 12,998.30 and 5,440.08 is: 7,507.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419.07 : 12,998.30 = 5,440.08 : x
  2. Step 2: Convert to fraction form
    9,419.07/12,998.30 = 5,440.08/x
  3. Step 3: Cross multiply
    9,419.07x = 12,998.30 × 5,440.08
  4. Step 4: Simplify right side
    9,419.07x = 70,711,764.66
  5. Step 5: Solve for x
    x = 70,711,764.66/9,419.07
  6. Step 6: Final answer
    x = 7,507.30

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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.