Home / 7,977.12-11,965.47-2,430.24

Finding the Fourth Proportional to 7,977.12, 11,965.47 and 2,430.24

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Solution

The fourth proportional to 7,977.12, 11,965.47 and 2,430.24 is: 3,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.12 : 11,965.47 = 2,430.24 : x
  2. Step 2: Convert to fraction form
    7,977.12/11,965.47 = 2,430.24/x
  3. Step 3: Cross multiply
    7,977.12x = 11,965.47 × 2,430.24
  4. Step 4: Simplify right side
    7,977.12x = 29,078,963.81
  5. Step 5: Solve for x
    x = 29,078,963.81/7,977.12
  6. Step 6: Final answer
    x = 3,645.30

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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.