Home / 25,986.75-38,986.62-7,518.75

Finding the Fourth Proportional to 25,986.75, 38,986.62 and 7,518.75

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Solution

The fourth proportional to 25,986.75, 38,986.62 and 7,518.75 is: 11,280.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,986.75 : 38,986.62 = 7,518.75 : x
  2. Step 2: Convert to fraction form
    25,986.75/38,986.62 = 7,518.75/x
  3. Step 3: Cross multiply
    25,986.75x = 38,986.62 × 7,518.75
  4. Step 4: Simplify right side
    25,986.75x = 293,130,649.13
  5. Step 5: Solve for x
    x = 293,130,649.13/25,986.75
  6. Step 6: Final answer
    x = 11,280.00

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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.