Home / 12,077.91-16,667.47-6,772.71

Finding the Fourth Proportional to 12,077.91, 16,667.47 and 6,772.71

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Solution

The fourth proportional to 12,077.91, 16,667.47 and 6,772.71 is: 9,346.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.91 : 16,667.47 = 6,772.71 : x
  2. Step 2: Convert to fraction form
    12,077.91/16,667.47 = 6,772.71/x
  3. Step 3: Cross multiply
    12,077.91x = 16,667.47 × 6,772.71
  4. Step 4: Simplify right side
    12,077.91x = 112,884,011.71
  5. Step 5: Solve for x
    x = 112,884,011.71/12,077.91
  6. Step 6: Final answer
    x = 9,346.32

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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.