Home / 15,642.28-23,460.90-5,786.20

Finding the Fourth Proportional to 15,642.28, 23,460.90 and 5,786.20

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Solution

The fourth proportional to 15,642.28, 23,460.90 and 5,786.20 is: 8,678.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642.28 : 23,460.90 = 5,786.20 : x
  2. Step 2: Convert to fraction form
    15,642.28/23,460.90 = 5,786.20/x
  3. Step 3: Cross multiply
    15,642.28x = 23,460.90 × 5,786.20
  4. Step 4: Simplify right side
    15,642.28x = 135,749,459.58
  5. Step 5: Solve for x
    x = 135,749,459.58/15,642.28
  6. Step 6: Final answer
    x = 8,678.37

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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.