Home / 18,256.64-27,386.32-5,108.84

Finding the Fourth Proportional to 18,256.64, 27,386.32 and 5,108.84

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Solution

The fourth proportional to 18,256.64, 27,386.32 and 5,108.84 is: 7,663.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,256.64 : 27,386.32 = 5,108.84 : x
  2. Step 2: Convert to fraction form
    18,256.64/27,386.32 = 5,108.84/x
  3. Step 3: Cross multiply
    18,256.64x = 27,386.32 × 5,108.84
  4. Step 4: Simplify right side
    18,256.64x = 139,912,327.07
  5. Step 5: Solve for x
    x = 139,912,327.07/18,256.64
  6. Step 6: Final answer
    x = 7,663.64

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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.