Home / 9,789.12-14,681.97-3,215.34

Finding the Fourth Proportional to 9,789.12, 14,681.97 and 3,215.34

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Solution

The fourth proportional to 9,789.12, 14,681.97 and 3,215.34 is: 4,822.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789.12 : 14,681.97 = 3,215.34 : x
  2. Step 2: Convert to fraction form
    9,789.12/14,681.97 = 3,215.34/x
  3. Step 3: Cross multiply
    9,789.12x = 14,681.97 × 3,215.34
  4. Step 4: Simplify right side
    9,789.12x = 47,207,525.42
  5. Step 5: Solve for x
    x = 47,207,525.42/9,789.12
  6. Step 6: Final answer
    x = 4,822.45

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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.