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Finding the Fourth Proportional to 19,971.72, 29,973.06 and 7,503.08

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Solution

The fourth proportional to 19,971.72, 29,973.06 and 7,503.08 is: 11,260.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.72 : 29,973.06 = 7,503.08 : x
  2. Step 2: Convert to fraction form
    19,971.72/29,973.06 = 7,503.08/x
  3. Step 3: Cross multiply
    19,971.72x = 29,973.06 × 7,503.08
  4. Step 4: Simplify right side
    19,971.72x = 224,890,117.16
  5. Step 5: Solve for x
    x = 224,890,117.16/19,971.72
  6. Step 6: Final answer
    x = 11,260.43

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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.