Home / 13,570.83-20,448.69-11,159.66

Finding the Fourth Proportional to 13,570.83, 20,448.69 and 11,159.66

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Solution

The fourth proportional to 13,570.83, 20,448.69 and 11,159.66 is: 16,815.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.83 : 20,448.69 = 11,159.66 : x
  2. Step 2: Convert to fraction form
    13,570.83/20,448.69 = 11,159.66/x
  3. Step 3: Cross multiply
    13,570.83x = 20,448.69 × 11,159.66
  4. Step 4: Simplify right side
    13,570.83x = 228,200,499.89
  5. Step 5: Solve for x
    x = 228,200,499.89/13,570.83
  6. Step 6: Final answer
    x = 16,815.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.