Home / 13,151.80-19,695.57-6,917.05

Finding the Fourth Proportional to 13,151.80, 19,695.57 and 6,917.05

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Solution

The fourth proportional to 13,151.80, 19,695.57 and 6,917.05 is: 10,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.80 : 19,695.57 = 6,917.05 : x
  2. Step 2: Convert to fraction form
    13,151.80/19,695.57 = 6,917.05/x
  3. Step 3: Cross multiply
    13,151.80x = 19,695.57 × 6,917.05
  4. Step 4: Simplify right side
    13,151.80x = 136,235,242.47
  5. Step 5: Solve for x
    x = 136,235,242.47/13,151.80
  6. Step 6: Final answer
    x = 10,358.68

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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.