Home / 15,642.84-23,462.88-5,782.20

Finding the Fourth Proportional to 15,642.84, 23,462.88 and 5,782.20

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Solution

The fourth proportional to 15,642.84, 23,462.88 and 5,782.20 is: 8,672.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642.84 : 23,462.88 = 5,782.20 : x
  2. Step 2: Convert to fraction form
    15,642.84/23,462.88 = 5,782.20/x
  3. Step 3: Cross multiply
    15,642.84x = 23,462.88 × 5,782.20
  4. Step 4: Simplify right side
    15,642.84x = 135,667,064.74
  5. Step 5: Solve for x
    x = 135,667,064.74/15,642.84
  6. Step 6: Final answer
    x = 8,672.79

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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.