Home / 15,288.48-21,097.11-8,574.06

Finding the Fourth Proportional to 15,288.48, 21,097.11 and 8,574.06

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Solution

The fourth proportional to 15,288.48, 21,097.11 and 8,574.06 is: 11,831.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288.48 : 21,097.11 = 8,574.06 : x
  2. Step 2: Convert to fraction form
    15,288.48/21,097.11 = 8,574.06/x
  3. Step 3: Cross multiply
    15,288.48x = 21,097.11 × 8,574.06
  4. Step 4: Simplify right side
    15,288.48x = 180,887,886.97
  5. Step 5: Solve for x
    x = 180,887,886.97/15,288.48
  6. Step 6: Final answer
    x = 11,831.65

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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.