Home / 13,627.85-18,805.77-7,660.07

Finding the Fourth Proportional to 13,627.85, 18,805.77 and 7,660.07

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Solution

The fourth proportional to 13,627.85, 18,805.77 and 7,660.07 is: 10,570.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,627.85 : 18,805.77 = 7,660.07 : x
  2. Step 2: Convert to fraction form
    13,627.85/18,805.77 = 7,660.07/x
  3. Step 3: Cross multiply
    13,627.85x = 18,805.77 × 7,660.07
  4. Step 4: Simplify right side
    13,627.85x = 144,053,491.10
  5. Step 5: Solve for x
    x = 144,053,491.10/13,627.85
  6. Step 6: Final answer
    x = 10,570.53

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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.