Home / 15,284.09-21,094.40-8,572.43

Finding the Fourth Proportional to 15,284.09, 21,094.40 and 8,572.43

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Solution

The fourth proportional to 15,284.09, 21,094.40 and 8,572.43 is: 11,831.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284.09 : 21,094.40 = 8,572.43 : x
  2. Step 2: Convert to fraction form
    15,284.09/21,094.40 = 8,572.43/x
  3. Step 3: Cross multiply
    15,284.09x = 21,094.40 × 8,572.43
  4. Step 4: Simplify right side
    15,284.09x = 180,830,183.35
  5. Step 5: Solve for x
    x = 180,830,183.35/15,284.09
  6. Step 6: Final answer
    x = 11,831.27

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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.