Home / 15,088.36-20,820.97-8,373.99

Finding the Fourth Proportional to 15,088.36, 20,820.97 and 8,373.99

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Solution

The fourth proportional to 15,088.36, 20,820.97 and 8,373.99 is: 11,555.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,088.36 : 20,820.97 = 8,373.99 : x
  2. Step 2: Convert to fraction form
    15,088.36/20,820.97 = 8,373.99/x
  3. Step 3: Cross multiply
    15,088.36x = 20,820.97 × 8,373.99
  4. Step 4: Simplify right side
    15,088.36x = 174,354,659.56
  5. Step 5: Solve for x
    x = 174,354,659.56/15,088.36
  6. Step 6: Final answer
    x = 11,555.57

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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.