Home / 9,177.42-12,664.77-4,985.70

Finding the Fourth Proportional to 9,177.42, 12,664.77 and 4,985.70

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Solution

The fourth proportional to 9,177.42, 12,664.77 and 4,985.70 is: 6,880.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.42 : 12,664.77 = 4,985.70 : x
  2. Step 2: Convert to fraction form
    9,177.42/12,664.77 = 4,985.70/x
  3. Step 3: Cross multiply
    9,177.42x = 12,664.77 × 4,985.70
  4. Step 4: Simplify right side
    9,177.42x = 63,142,743.79
  5. Step 5: Solve for x
    x = 63,142,743.79/9,177.42
  6. Step 6: Final answer
    x = 6,880.23

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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.