Home / 14,305.19-19,741.16-7,931.79

Finding the Fourth Proportional to 14,305.19, 19,741.16 and 7,931.79

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Solution

The fourth proportional to 14,305.19, 19,741.16 and 7,931.79 is: 10,945.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,305.19 : 19,741.16 = 7,931.79 : x
  2. Step 2: Convert to fraction form
    14,305.19/19,741.16 = 7,931.79/x
  3. Step 3: Cross multiply
    14,305.19x = 19,741.16 × 7,931.79
  4. Step 4: Simplify right side
    14,305.19x = 156,582,597.11
  5. Step 5: Solve for x
    x = 156,582,597.11/14,305.19
  6. Step 6: Final answer
    x = 10,945.86

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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.