Home / 13,117.02-19,685.25-7,278.54

Finding the Fourth Proportional to 13,117.02, 19,685.25 and 7,278.54

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Solution

The fourth proportional to 13,117.02, 19,685.25 and 7,278.54 is: 10,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.02 : 19,685.25 = 7,278.54 : x
  2. Step 2: Convert to fraction form
    13,117.02/19,685.25 = 7,278.54/x
  3. Step 3: Cross multiply
    13,117.02x = 19,685.25 × 7,278.54
  4. Step 4: Simplify right side
    13,117.02x = 143,279,879.54
  5. Step 5: Solve for x
    x = 143,279,879.54/13,117.02
  6. Step 6: Final answer
    x = 10,923.20

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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.