Home / 12,688,363-17,509,663.82-6,887,155.96

Finding the Fourth Proportional to 12,688,363, 17,509,663.82 and 6,887,155.96

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Solution

The fourth proportional to 12,688,363, 17,509,663.82 and 6,887,155.96 is: 9,504,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,363 : 17,509,663.82 = 6,887,155.96 : x
  2. Step 2: Convert to fraction form
    12,688,363/17,509,663.82 = 6,887,155.96/x
  3. Step 3: Cross multiply
    12,688,363x = 17,509,663.82 × 6,887,155.96
  4. Step 4: Simplify right side
    12,688,363x = 120,591,785,535,509.38
  5. Step 5: Solve for x
    x = 120,591,785,535,509.38/12,688,363
  6. Step 6: Final answer
    x = 9,504,124.81

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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.