Home / 13,369.41-18,448.29-7,400.61

Finding the Fourth Proportional to 13,369.41, 18,448.29 and 7,400.61

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Solution

The fourth proportional to 13,369.41, 18,448.29 and 7,400.61 is: 10,212.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.41 : 18,448.29 = 7,400.61 : x
  2. Step 2: Convert to fraction form
    13,369.41/18,448.29 = 7,400.61/x
  3. Step 3: Cross multiply
    13,369.41x = 18,448.29 × 7,400.61
  4. Step 4: Simplify right side
    13,369.41x = 136,528,599.46
  5. Step 5: Solve for x
    x = 136,528,599.46/13,369.41
  6. Step 6: Final answer
    x = 10,212.01

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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.