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Finding the Fourth Proportional to 14,017.30, 21,009.30 and 7,440.10

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Solution

The fourth proportional to 14,017.30, 21,009.30 and 7,440.10 is: 11,151.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,017.30 : 21,009.30 = 7,440.10 : x
  2. Step 2: Convert to fraction form
    14,017.30/21,009.30 = 7,440.10/x
  3. Step 3: Cross multiply
    14,017.30x = 21,009.30 × 7,440.10
  4. Step 4: Simplify right side
    14,017.30x = 156,311,292.93
  5. Step 5: Solve for x
    x = 156,311,292.93/14,017.30
  6. Step 6: Final answer
    x = 11,151.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.