Home / 12,555.91-17,326.58-6,890.52

Finding the Fourth Proportional to 12,555.91, 17,326.58 and 6,890.52

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Solution

The fourth proportional to 12,555.91, 17,326.58 and 6,890.52 is: 9,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.91 : 17,326.58 = 6,890.52 : x
  2. Step 2: Convert to fraction form
    12,555.91/17,326.58 = 6,890.52/x
  3. Step 3: Cross multiply
    12,555.91x = 17,326.58 × 6,890.52
  4. Step 4: Simplify right side
    12,555.91x = 119,389,146.02
  5. Step 5: Solve for x
    x = 119,389,146.02/12,555.91
  6. Step 6: Final answer
    x = 9,508.60

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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.