Home / 13,860.28-20,753.16-10,557.64

Finding the Fourth Proportional to 13,860.28, 20,753.16 and 10,557.64

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Solution

The fourth proportional to 13,860.28, 20,753.16 and 10,557.64 is: 15,808.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.28 : 20,753.16 = 10,557.64 : x
  2. Step 2: Convert to fraction form
    13,860.28/20,753.16 = 10,557.64/x
  3. Step 3: Cross multiply
    13,860.28x = 20,753.16 × 10,557.64
  4. Step 4: Simplify right side
    13,860.28x = 219,104,392.14
  5. Step 5: Solve for x
    x = 219,104,392.14/13,860.28
  6. Step 6: Final answer
    x = 15,808.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.