Home / 13,464.24-20,184.96-6,440.40

Finding the Fourth Proportional to 13,464.24, 20,184.96 and 6,440.40

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Solution

The fourth proportional to 13,464.24, 20,184.96 and 6,440.40 is: 9,655.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,464.24 : 20,184.96 = 6,440.40 : x
  2. Step 2: Convert to fraction form
    13,464.24/20,184.96 = 6,440.40/x
  3. Step 3: Cross multiply
    13,464.24x = 20,184.96 × 6,440.40
  4. Step 4: Simplify right side
    13,464.24x = 129,999,216.38
  5. Step 5: Solve for x
    x = 129,999,216.38/13,464.24
  6. Step 6: Final answer
    x = 9,655.15

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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.