Home / 14,079.92-19,429.08-7,790.72

Finding the Fourth Proportional to 14,079.92, 19,429.08 and 7,790.72

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Solution

The fourth proportional to 14,079.92, 19,429.08 and 7,790.72 is: 10,750.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.92 : 19,429.08 = 7,790.72 : x
  2. Step 2: Convert to fraction form
    14,079.92/19,429.08 = 7,790.72/x
  3. Step 3: Cross multiply
    14,079.92x = 19,429.08 × 7,790.72
  4. Step 4: Simplify right side
    14,079.92x = 151,366,522.14
  5. Step 5: Solve for x
    x = 151,366,522.14/14,079.92
  6. Step 6: Final answer
    x = 10,750.52

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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.