Home / 13,862.40-19,101.60-10,708.80

Finding the Fourth Proportional to 13,862.40, 19,101.60 and 10,708.80

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Solution

The fourth proportional to 13,862.40, 19,101.60 and 10,708.80 is: 14,756.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.40 : 19,101.60 = 10,708.80 : x
  2. Step 2: Convert to fraction form
    13,862.40/19,101.60 = 10,708.80/x
  3. Step 3: Cross multiply
    13,862.40x = 19,101.60 × 10,708.80
  4. Step 4: Simplify right side
    13,862.40x = 204,555,214.08
  5. Step 5: Solve for x
    x = 204,555,214.08/13,862.40
  6. Step 6: Final answer
    x = 14,756.12

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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.