Home / 13,103.28-19,656.48-4,339.20

Finding the Fourth Proportional to 13,103.28, 19,656.48 and 4,339.20

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Solution

The fourth proportional to 13,103.28, 19,656.48 and 4,339.20 is: 6,509.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.28 : 19,656.48 = 4,339.20 : x
  2. Step 2: Convert to fraction form
    13,103.28/19,656.48 = 4,339.20/x
  3. Step 3: Cross multiply
    13,103.28x = 19,656.48 × 4,339.20
  4. Step 4: Simplify right side
    13,103.28x = 85,293,398.02
  5. Step 5: Solve for x
    x = 85,293,398.02/13,103.28
  6. Step 6: Final answer
    x = 6,509.32

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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.