Home / 13,367.79-18,445.61-7,399.44

Finding the Fourth Proportional to 13,367.79, 18,445.61 and 7,399.44

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Solution

The fourth proportional to 13,367.79, 18,445.61 and 7,399.44 is: 10,210.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,367.79 : 18,445.61 = 7,399.44 : x
  2. Step 2: Convert to fraction form
    13,367.79/18,445.61 = 7,399.44/x
  3. Step 3: Cross multiply
    13,367.79x = 18,445.61 × 7,399.44
  4. Step 4: Simplify right side
    13,367.79x = 136,487,184.46
  5. Step 5: Solve for x
    x = 136,487,184.46/13,367.79
  6. Step 6: Final answer
    x = 10,210.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.