Home / 12,005.64-16,567.77-6,628.41

Finding the Fourth Proportional to 12,005.64, 16,567.77 and 6,628.41

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Solution

The fourth proportional to 12,005.64, 16,567.77 and 6,628.41 is: 9,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005.64 : 16,567.77 = 6,628.41 : x
  2. Step 2: Convert to fraction form
    12,005.64/16,567.77 = 6,628.41/x
  3. Step 3: Cross multiply
    12,005.64x = 16,567.77 × 6,628.41
  4. Step 4: Simplify right side
    12,005.64x = 109,817,972.35
  5. Step 5: Solve for x
    x = 109,817,972.35/12,005.64
  6. Step 6: Final answer
    x = 9,147.20

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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.