Home / 19,449.31-26,840.68-11,898.99

Finding the Fourth Proportional to 19,449.31, 26,840.68 and 11,898.99

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Solution

The fourth proportional to 19,449.31, 26,840.68 and 11,898.99 is: 16,421.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,449.31 : 26,840.68 = 11,898.99 : x
  2. Step 2: Convert to fraction form
    19,449.31/26,840.68 = 11,898.99/x
  3. Step 3: Cross multiply
    19,449.31x = 26,840.68 × 11,898.99
  4. Step 4: Simplify right side
    19,449.31x = 319,376,982.91
  5. Step 5: Solve for x
    x = 319,376,982.91/19,449.31
  6. Step 6: Final answer
    x = 16,421.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.