Home / 13,448.26-18,558.34-7,479.89

Finding the Fourth Proportional to 13,448.26, 18,558.34 and 7,479.89

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Solution

The fourth proportional to 13,448.26, 18,558.34 and 7,479.89 is: 10,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.26 : 18,558.34 = 7,479.89 : x
  2. Step 2: Convert to fraction form
    13,448.26/18,558.34 = 7,479.89/x
  3. Step 3: Cross multiply
    13,448.26x = 18,558.34 × 7,479.89
  4. Step 4: Simplify right side
    13,448.26x = 138,814,341.78
  5. Step 5: Solve for x
    x = 138,814,341.78/13,448.26
  6. Step 6: Final answer
    x = 10,322.10

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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.