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Finding the Fourth Proportional to 14,403.18, 19,879.11 and 9,026.40

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Solution

The fourth proportional to 14,403.18, 19,879.11 and 9,026.40 is: 12,458.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,403.18 : 19,879.11 = 9,026.40 : x
  2. Step 2: Convert to fraction form
    14,403.18/19,879.11 = 9,026.40/x
  3. Step 3: Cross multiply
    14,403.18x = 19,879.11 × 9,026.40
  4. Step 4: Simplify right side
    14,403.18x = 179,436,798.50
  5. Step 5: Solve for x
    x = 179,436,798.50/14,403.18
  6. Step 6: Final answer
    x = 12,458.14

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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.