Home / 13,358.26-18,434.77-7,390.47

Finding the Fourth Proportional to 13,358.26, 18,434.77 and 7,390.47

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Solution

The fourth proportional to 13,358.26, 18,434.77 and 7,390.47 is: 10,199.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.26 : 18,434.77 = 7,390.47 : x
  2. Step 2: Convert to fraction form
    13,358.26/18,434.77 = 7,390.47/x
  3. Step 3: Cross multiply
    13,358.26x = 18,434.77 × 7,390.47
  4. Step 4: Simplify right side
    13,358.26x = 136,241,614.64
  5. Step 5: Solve for x
    x = 136,241,614.64/13,358.26
  6. Step 6: Final answer
    x = 10,199.05

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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.