Home / 12,895.40-19,430.96-10,606.68

Finding the Fourth Proportional to 12,895.40, 19,430.96 and 10,606.68

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Solution

The fourth proportional to 12,895.40, 19,430.96 and 10,606.68 is: 15,982.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.40 : 19,430.96 = 10,606.68 : x
  2. Step 2: Convert to fraction form
    12,895.40/19,430.96 = 10,606.68/x
  3. Step 3: Cross multiply
    12,895.40x = 19,430.96 × 10,606.68
  4. Step 4: Simplify right side
    12,895.40x = 206,097,921.78
  5. Step 5: Solve for x
    x = 206,097,921.78/12,895.40
  6. Step 6: Final answer
    x = 15,982.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.