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Finding the Fourth Proportional to 26,348.99, 39,539.06 and 9,720.71

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Solution

The fourth proportional to 26,348.99, 39,539.06 and 9,720.71 is: 14,586.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,348.99 : 39,539.06 = 9,720.71 : x
  2. Step 2: Convert to fraction form
    26,348.99/39,539.06 = 9,720.71/x
  3. Step 3: Cross multiply
    26,348.99x = 39,539.06 × 9,720.71
  4. Step 4: Simplify right side
    26,348.99x = 384,347,489.63
  5. Step 5: Solve for x
    x = 384,347,489.63/26,348.99
  6. Step 6: Final answer
    x = 14,586.80

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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.