Home / 13,559.64-18,696.36-10,868.70

Finding the Fourth Proportional to 13,559.64, 18,696.36 and 10,868.70

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Solution

The fourth proportional to 13,559.64, 18,696.36 and 10,868.70 is: 14,986.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.64 : 18,696.36 = 10,868.70 : x
  2. Step 2: Convert to fraction form
    13,559.64/18,696.36 = 10,868.70/x
  3. Step 3: Cross multiply
    13,559.64x = 18,696.36 × 10,868.70
  4. Step 4: Simplify right side
    13,559.64x = 203,205,127.93
  5. Step 5: Solve for x
    x = 203,205,127.93/13,559.64
  6. Step 6: Final answer
    x = 14,986.03

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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.