Home / 9,977.20-13,762.92-5,784.88

Finding the Fourth Proportional to 9,977.20, 13,762.92 and 5,784.88

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Solution

The fourth proportional to 9,977.20, 13,762.92 and 5,784.88 is: 7,979.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,977.20 : 13,762.92 = 5,784.88 : x
  2. Step 2: Convert to fraction form
    9,977.20/13,762.92 = 5,784.88/x
  3. Step 3: Cross multiply
    9,977.20x = 13,762.92 × 5,784.88
  4. Step 4: Simplify right side
    9,977.20x = 79,616,840.65
  5. Step 5: Solve for x
    x = 79,616,840.65/9,977.20
  6. Step 6: Final answer
    x = 7,979.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.