Home / 12,813,428.22-17,690,783.54-11,434,400.34

Finding the Fourth Proportional to 12,813,428.22, 17,690,783.54 and 11,434,400.34

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Solution

The fourth proportional to 12,813,428.22, 17,690,783.54 and 11,434,400.34 is: 15,786,836.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,813,428.22 : 17,690,783.54 = 11,434,400.34 : x
  2. Step 2: Convert to fraction form
    12,813,428.22/17,690,783.54 = 11,434,400.34/x
  3. Step 3: Cross multiply
    12,813,428.22x = 17,690,783.54 × 11,434,400.34
  4. Step 4: Simplify right side
    12,813,428.22x = 202,283,501,324,642.41
  5. Step 5: Solve for x
    x = 202,283,501,324,642.41/12,813,428.22
  6. Step 6: Final answer
    x = 15,786,836.89

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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.