Home / 13,017.20-19,523.64-3,656.40

Finding the Fourth Proportional to 13,017.20, 19,523.64 and 3,656.40

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Solution

The fourth proportional to 13,017.20, 19,523.64 and 3,656.40 is: 5,483.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,017.20 : 19,523.64 = 3,656.40 : x
  2. Step 2: Convert to fraction form
    13,017.20/19,523.64 = 3,656.40/x
  3. Step 3: Cross multiply
    13,017.20x = 19,523.64 × 3,656.40
  4. Step 4: Simplify right side
    13,017.20x = 71,386,237.30
  5. Step 5: Solve for x
    x = 71,386,237.30/13,017.20
  6. Step 6: Final answer
    x = 5,483.99

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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.