Home / 9,177.90-12,665.37-4,986.15

Finding the Fourth Proportional to 9,177.90, 12,665.37 and 4,986.15

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Solution

The fourth proportional to 9,177.90, 12,665.37 and 4,986.15 is: 6,880.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.90 : 12,665.37 = 4,986.15 : x
  2. Step 2: Convert to fraction form
    9,177.90/12,665.37 = 4,986.15/x
  3. Step 3: Cross multiply
    9,177.90x = 12,665.37 × 4,986.15
  4. Step 4: Simplify right side
    9,177.90x = 63,151,434.63
  5. Step 5: Solve for x
    x = 63,151,434.63/9,177.90
  6. Step 6: Final answer
    x = 6,880.82

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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.