Home / 13,695.28-20,526.32-6,289.44

Finding the Fourth Proportional to 13,695.28, 20,526.32 and 6,289.44

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Solution

The fourth proportional to 13,695.28, 20,526.32 and 6,289.44 is: 9,426.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.28 : 20,526.32 = 6,289.44 : x
  2. Step 2: Convert to fraction form
    13,695.28/20,526.32 = 6,289.44/x
  3. Step 3: Cross multiply
    13,695.28x = 20,526.32 × 6,289.44
  4. Step 4: Simplify right side
    13,695.28x = 129,099,058.06
  5. Step 5: Solve for x
    x = 129,099,058.06/13,695.28
  6. Step 6: Final answer
    x = 9,426.54

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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.