Home / 11,892.81-16,412.19-7,176.18

Finding the Fourth Proportional to 11,892.81, 16,412.19 and 7,176.18

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Solution

The fourth proportional to 11,892.81, 16,412.19 and 7,176.18 is: 9,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.81 : 16,412.19 = 7,176.18 : x
  2. Step 2: Convert to fraction form
    11,892.81/16,412.19 = 7,176.18/x
  3. Step 3: Cross multiply
    11,892.81x = 16,412.19 × 7,176.18
  4. Step 4: Simplify right side
    11,892.81x = 117,776,829.63
  5. Step 5: Solve for x
    x = 117,776,829.63/11,892.81
  6. Step 6: Final answer
    x = 9,903.20

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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.