Home / 12,308.08-16,983.90-7,001.80

Finding the Fourth Proportional to 12,308.08, 16,983.90 and 7,001.80

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Solution

The fourth proportional to 12,308.08, 16,983.90 and 7,001.80 is: 9,661.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308.08 : 16,983.90 = 7,001.80 : x
  2. Step 2: Convert to fraction form
    12,308.08/16,983.90 = 7,001.80/x
  3. Step 3: Cross multiply
    12,308.08x = 16,983.90 × 7,001.80
  4. Step 4: Simplify right side
    12,308.08x = 118,917,871.02
  5. Step 5: Solve for x
    x = 118,917,871.02/12,308.08
  6. Step 6: Final answer
    x = 9,661.77

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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.