Home / 14,292.72-21,445.20-7,372.08

Finding the Fourth Proportional to 14,292.72, 21,445.20 and 7,372.08

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Solution

The fourth proportional to 14,292.72, 21,445.20 and 7,372.08 is: 11,061.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,292.72 : 21,445.20 = 7,372.08 : x
  2. Step 2: Convert to fraction form
    14,292.72/21,445.20 = 7,372.08/x
  3. Step 3: Cross multiply
    14,292.72x = 21,445.20 × 7,372.08
  4. Step 4: Simplify right side
    14,292.72x = 158,095,730.02
  5. Step 5: Solve for x
    x = 158,095,730.02/14,292.72
  6. Step 6: Final answer
    x = 11,061.28

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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.