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Finding the Fourth Proportional to 14,403.71, 19,878.73 and 8,030.88

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Solution

The fourth proportional to 14,403.71, 19,878.73 and 8,030.88 is: 11,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,403.71 : 19,878.73 = 8,030.88 : x
  2. Step 2: Convert to fraction form
    14,403.71/19,878.73 = 8,030.88/x
  3. Step 3: Cross multiply
    14,403.71x = 19,878.73 × 8,030.88
  4. Step 4: Simplify right side
    14,403.71x = 159,643,675.11
  5. Step 5: Solve for x
    x = 159,643,675.11/14,403.71
  6. Step 6: Final answer
    x = 11,083.51

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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.