Home / 12,069.48-16,646.84-9,676.77

Finding the Fourth Proportional to 12,069.48, 16,646.84 and 9,676.77

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Solution

The fourth proportional to 12,069.48, 16,646.84 and 9,676.77 is: 13,346.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069.48 : 16,646.84 = 9,676.77 : x
  2. Step 2: Convert to fraction form
    12,069.48/16,646.84 = 9,676.77/x
  3. Step 3: Cross multiply
    12,069.48x = 16,646.84 × 9,676.77
  4. Step 4: Simplify right side
    12,069.48x = 161,087,641.91
  5. Step 5: Solve for x
    x = 161,087,641.91/12,069.48
  6. Step 6: Final answer
    x = 13,346.69

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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.