Home / 13,277.20-19,888.80-10,650.64

Finding the Fourth Proportional to 13,277.20, 19,888.80 and 10,650.64

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Solution

The fourth proportional to 13,277.20, 19,888.80 and 10,650.64 is: 15,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.20 : 19,888.80 = 10,650.64 : x
  2. Step 2: Convert to fraction form
    13,277.20/19,888.80 = 10,650.64/x
  3. Step 3: Cross multiply
    13,277.20x = 19,888.80 × 10,650.64
  4. Step 4: Simplify right side
    13,277.20x = 211,828,448.83
  5. Step 5: Solve for x
    x = 211,828,448.83/13,277.20
  6. Step 6: Final answer
    x = 15,954.30

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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.