Home / 13,360.90-18,436.71-7,392.41

Finding the Fourth Proportional to 13,360.90, 18,436.71 and 7,392.41

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Solution

The fourth proportional to 13,360.90, 18,436.71 and 7,392.41 is: 10,200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.90 : 18,436.71 = 7,392.41 : x
  2. Step 2: Convert to fraction form
    13,360.90/18,436.71 = 7,392.41/x
  3. Step 3: Cross multiply
    13,360.90x = 18,436.71 × 7,392.41
  4. Step 4: Simplify right side
    13,360.90x = 136,291,827.75
  5. Step 5: Solve for x
    x = 136,291,827.75/13,360.90
  6. Step 6: Final answer
    x = 10,200.80

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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.