Home / 13,448.12-18,558.87-7,398.63

Finding the Fourth Proportional to 13,448.12, 18,558.87 and 7,398.63

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Solution

The fourth proportional to 13,448.12, 18,558.87 and 7,398.63 is: 10,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.12 : 18,558.87 = 7,398.63 : x
  2. Step 2: Convert to fraction form
    13,448.12/18,558.87 = 7,398.63/x
  3. Step 3: Cross multiply
    13,448.12x = 18,558.87 × 7,398.63
  4. Step 4: Simplify right side
    13,448.12x = 137,310,212.35
  5. Step 5: Solve for x
    x = 137,310,212.35/13,448.12
  6. Step 6: Final answer
    x = 10,210.36

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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.