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Finding the Fourth Proportional to 14,340.40, 19,790.40 and 8,053.18

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Solution

The fourth proportional to 14,340.40, 19,790.40 and 8,053.18 is: 11,113.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,340.40 : 19,790.40 = 8,053.18 : x
  2. Step 2: Convert to fraction form
    14,340.40/19,790.40 = 8,053.18/x
  3. Step 3: Cross multiply
    14,340.40x = 19,790.40 × 8,053.18
  4. Step 4: Simplify right side
    14,340.40x = 159,375,653.47
  5. Step 5: Solve for x
    x = 159,375,653.47/14,340.40
  6. Step 6: Final answer
    x = 11,113.75

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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.