Home / 12,160.07-16,779.89-6,856.19

Finding the Fourth Proportional to 12,160.07, 16,779.89 and 6,856.19

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Solution

The fourth proportional to 12,160.07, 16,779.89 and 6,856.19 is: 9,460.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.07 : 16,779.89 = 6,856.19 : x
  2. Step 2: Convert to fraction form
    12,160.07/16,779.89 = 6,856.19/x
  3. Step 3: Cross multiply
    12,160.07x = 16,779.89 × 6,856.19
  4. Step 4: Simplify right side
    12,160.07x = 115,046,114.02
  5. Step 5: Solve for x
    x = 115,046,114.02/12,160.07
  6. Step 6: Final answer
    x = 9,460.97

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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.