Home / 12,095.70-16,688.97-7,620.18

Finding the Fourth Proportional to 12,095.70, 16,688.97 and 7,620.18

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Solution

The fourth proportional to 12,095.70, 16,688.97 and 7,620.18 is: 10,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,095.70 : 16,688.97 = 7,620.18 : x
  2. Step 2: Convert to fraction form
    12,095.70/16,688.97 = 7,620.18/x
  3. Step 3: Cross multiply
    12,095.70x = 16,688.97 × 7,620.18
  4. Step 4: Simplify right side
    12,095.70x = 127,172,955.41
  5. Step 5: Solve for x
    x = 127,172,955.41/12,095.70
  6. Step 6: Final answer
    x = 10,513.90

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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.