Home / 14,345.17-21,489.91-11,389.07

Finding the Fourth Proportional to 14,345.17, 21,489.91 and 11,389.07

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Solution

The fourth proportional to 14,345.17, 21,489.91 and 11,389.07 is: 17,061.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,345.17 : 21,489.91 = 11,389.07 : x
  2. Step 2: Convert to fraction form
    14,345.17/21,489.91 = 11,389.07/x
  3. Step 3: Cross multiply
    14,345.17x = 21,489.91 × 11,389.07
  4. Step 4: Simplify right side
    14,345.17x = 244,750,114.54
  5. Step 5: Solve for x
    x = 244,750,114.54/14,345.17
  6. Step 6: Final answer
    x = 17,061.50

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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.