Home / 12,191.19-16,832.06-7,655.81

Finding the Fourth Proportional to 12,191.19, 16,832.06 and 7,655.81

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Solution

The fourth proportional to 12,191.19, 16,832.06 and 7,655.81 is: 10,570.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.19 : 16,832.06 = 7,655.81 : x
  2. Step 2: Convert to fraction form
    12,191.19/16,832.06 = 7,655.81/x
  3. Step 3: Cross multiply
    12,191.19x = 16,832.06 × 7,655.81
  4. Step 4: Simplify right side
    12,191.19x = 128,862,930.83
  5. Step 5: Solve for x
    x = 128,862,930.83/12,191.19
  6. Step 6: Final answer
    x = 10,570.17

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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.