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Finding the Fourth Proportional to 14,043.51, 21,061.04 and 11,572.20

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Solution

The fourth proportional to 14,043.51, 21,061.04 and 11,572.20 is: 17,354.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,043.51 : 21,061.04 = 11,572.20 : x
  2. Step 2: Convert to fraction form
    14,043.51/21,061.04 = 11,572.20/x
  3. Step 3: Cross multiply
    14,043.51x = 21,061.04 × 11,572.20
  4. Step 4: Simplify right side
    14,043.51x = 243,722,509.23
  5. Step 5: Solve for x
    x = 243,722,509.23/14,043.51
  6. Step 6: Final answer
    x = 17,354.81

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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.