Home / 13,671.80-20,507.66-10,556.32

Finding the Fourth Proportional to 13,671.80, 20,507.66 and 10,556.32

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Solution

The fourth proportional to 13,671.80, 20,507.66 and 10,556.32 is: 15,834.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.80 : 20,507.66 = 10,556.32 : x
  2. Step 2: Convert to fraction form
    13,671.80/20,507.66 = 10,556.32/x
  3. Step 3: Cross multiply
    13,671.80x = 20,507.66 × 10,556.32
  4. Step 4: Simplify right side
    13,671.80x = 216,485,421.41
  5. Step 5: Solve for x
    x = 216,485,421.41/13,671.80
  6. Step 6: Final answer
    x = 15,834.45

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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.