Home / 13,368.63-18,449.57-7,400.29

Finding the Fourth Proportional to 13,368.63, 18,449.57 and 7,400.29

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Solution

The fourth proportional to 13,368.63, 18,449.57 and 7,400.29 is: 10,212.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.63 : 18,449.57 = 7,400.29 : x
  2. Step 2: Convert to fraction form
    13,368.63/18,449.57 = 7,400.29/x
  3. Step 3: Cross multiply
    13,368.63x = 18,449.57 × 7,400.29
  4. Step 4: Simplify right side
    13,368.63x = 136,532,168.38
  5. Step 5: Solve for x
    x = 136,532,168.38/13,368.63
  6. Step 6: Final answer
    x = 10,212.88

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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.