Home / 13,410.80-20,111.63-4,643.66

Finding the Fourth Proportional to 13,410.80, 20,111.63 and 4,643.66

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Solution

The fourth proportional to 13,410.80, 20,111.63 and 4,643.66 is: 6,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.80 : 20,111.63 = 4,643.66 : x
  2. Step 2: Convert to fraction form
    13,410.80/20,111.63 = 4,643.66/x
  3. Step 3: Cross multiply
    13,410.80x = 20,111.63 × 4,643.66
  4. Step 4: Simplify right side
    13,410.80x = 93,391,471.21
  5. Step 5: Solve for x
    x = 93,391,471.21/13,410.80
  6. Step 6: Final answer
    x = 6,963.90

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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.