Home / 12,039.96-16,616.70-7,860.36

Finding the Fourth Proportional to 12,039.96, 16,616.70 and 7,860.36

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Solution

The fourth proportional to 12,039.96, 16,616.70 and 7,860.36 is: 10,848.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039.96 : 16,616.70 = 7,860.36 : x
  2. Step 2: Convert to fraction form
    12,039.96/16,616.70 = 7,860.36/x
  3. Step 3: Cross multiply
    12,039.96x = 16,616.70 × 7,860.36
  4. Step 4: Simplify right side
    12,039.96x = 130,613,244.01
  5. Step 5: Solve for x
    x = 130,613,244.01/12,039.96
  6. Step 6: Final answer
    x = 10,848.31

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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.