Home / 12,709,037.73-17,538,103.45-7,202,921.45

Finding the Fourth Proportional to 12,709,037.73, 17,538,103.45 and 7,202,921.45

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Solution

The fourth proportional to 12,709,037.73, 17,538,103.45 and 7,202,921.45 is: 9,939,822.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709,037.73 : 17,538,103.45 = 7,202,921.45 : x
  2. Step 2: Convert to fraction form
    12,709,037.73/17,538,103.45 = 7,202,921.45/x
  3. Step 3: Cross multiply
    12,709,037.73x = 17,538,103.45 × 7,202,921.45
  4. Step 4: Simplify right side
    12,709,037.73x = 126,325,581,496,309.41
  5. Step 5: Solve for x
    x = 126,325,581,496,309.41/12,709,037.73
  6. Step 6: Final answer
    x = 9,939,822.68

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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.