Home / 13,990.91-19,301.54-9,266.99

Finding the Fourth Proportional to 13,990.91, 19,301.54 and 9,266.99

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Solution

The fourth proportional to 13,990.91, 19,301.54 and 9,266.99 is: 12,784.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.91 : 19,301.54 = 9,266.99 : x
  2. Step 2: Convert to fraction form
    13,990.91/19,301.54 = 9,266.99/x
  3. Step 3: Cross multiply
    13,990.91x = 19,301.54 × 9,266.99
  4. Step 4: Simplify right side
    13,990.91x = 178,867,035.32
  5. Step 5: Solve for x
    x = 178,867,035.32/13,990.91
  6. Step 6: Final answer
    x = 12,784.52

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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.