Home / 14,065.92-19,409.76-7,776.72

Finding the Fourth Proportional to 14,065.92, 19,409.76 and 7,776.72

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Solution

The fourth proportional to 14,065.92, 19,409.76 and 7,776.72 is: 10,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,065.92 : 19,409.76 = 7,776.72 : x
  2. Step 2: Convert to fraction form
    14,065.92/19,409.76 = 7,776.72/x
  3. Step 3: Cross multiply
    14,065.92x = 19,409.76 × 7,776.72
  4. Step 4: Simplify right side
    14,065.92x = 150,944,268.79
  5. Step 5: Solve for x
    x = 150,944,268.79/14,065.92
  6. Step 6: Final answer
    x = 10,731.20

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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.