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Finding the Fourth Proportional to 19,881.99, 29,798.70 and 9,337.93

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Solution

The fourth proportional to 19,881.99, 29,798.70 and 9,337.93 is: 13,995.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.99 : 29,798.70 = 9,337.93 : x
  2. Step 2: Convert to fraction form
    19,881.99/29,798.70 = 9,337.93/x
  3. Step 3: Cross multiply
    19,881.99x = 29,798.70 × 9,337.93
  4. Step 4: Simplify right side
    19,881.99x = 278,258,285.32
  5. Step 5: Solve for x
    x = 278,258,285.32/19,881.99
  6. Step 6: Final answer
    x = 13,995.49

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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.