Home / 13,366.36-18,445.14-7,397.80

Finding the Fourth Proportional to 13,366.36, 18,445.14 and 7,397.80

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Solution

The fourth proportional to 13,366.36, 18,445.14 and 7,397.80 is: 10,208.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.36 : 18,445.14 = 7,397.80 : x
  2. Step 2: Convert to fraction form
    13,366.36/18,445.14 = 7,397.80/x
  3. Step 3: Cross multiply
    13,366.36x = 18,445.14 × 7,397.80
  4. Step 4: Simplify right side
    13,366.36x = 136,453,456.69
  5. Step 5: Solve for x
    x = 136,453,456.69/13,366.36
  6. Step 6: Final answer
    x = 10,208.72

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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.