Home / 9,615.12-14,420.88-4,419.72

Finding the Fourth Proportional to 9,615.12, 14,420.88 and 4,419.72

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Solution

The fourth proportional to 9,615.12, 14,420.88 and 4,419.72 is: 6,628.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,615.12 : 14,420.88 = 4,419.72 : x
  2. Step 2: Convert to fraction form
    9,615.12/14,420.88 = 4,419.72/x
  3. Step 3: Cross multiply
    9,615.12x = 14,420.88 × 4,419.72
  4. Step 4: Simplify right side
    9,615.12x = 63,736,251.75
  5. Step 5: Solve for x
    x = 63,736,251.75/9,615.12
  6. Step 6: Final answer
    x = 6,628.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.