Home / 10,689.19-14,750.64-6,212.90

Finding the Fourth Proportional to 10,689.19, 14,750.64 and 6,212.90

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Solution

The fourth proportional to 10,689.19, 14,750.64 and 6,212.90 is: 8,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,689.19 : 14,750.64 = 6,212.90 : x
  2. Step 2: Convert to fraction form
    10,689.19/14,750.64 = 6,212.90/x
  3. Step 3: Cross multiply
    10,689.19x = 14,750.64 × 6,212.90
  4. Step 4: Simplify right side
    10,689.19x = 91,644,288.13
  5. Step 5: Solve for x
    x = 91,644,288.13/10,689.19
  6. Step 6: Final answer
    x = 8,573.55

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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.