Home / 9,688.72-13,368.84-6,103.12

Finding the Fourth Proportional to 9,688.72, 13,368.84 and 6,103.12

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Solution

The fourth proportional to 9,688.72, 13,368.84 and 6,103.12 is: 8,421.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,688.72 : 13,368.84 = 6,103.12 : x
  2. Step 2: Convert to fraction form
    9,688.72/13,368.84 = 6,103.12/x
  3. Step 3: Cross multiply
    9,688.72x = 13,368.84 × 6,103.12
  4. Step 4: Simplify right side
    9,688.72x = 81,591,634.78
  5. Step 5: Solve for x
    x = 81,591,634.78/9,688.72
  6. Step 6: Final answer
    x = 8,421.30

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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.