Home / 9,419.35-12,999.06-5,228.41

Finding the Fourth Proportional to 9,419.35, 12,999.06 and 5,228.41

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Solution

The fourth proportional to 9,419.35, 12,999.06 and 5,228.41 is: 7,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419.35 : 12,999.06 = 5,228.41 : x
  2. Step 2: Convert to fraction form
    9,419.35/12,999.06 = 5,228.41/x
  3. Step 3: Cross multiply
    9,419.35x = 12,999.06 × 5,228.41
  4. Step 4: Simplify right side
    9,419.35x = 67,964,415.29
  5. Step 5: Solve for x
    x = 67,964,415.29/9,419.35
  6. Step 6: Final answer
    x = 7,215.40

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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.