Home / 12,293.64-18,421.79-9,008.91

Finding the Fourth Proportional to 12,293.64, 18,421.79 and 9,008.91

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Solution

The fourth proportional to 12,293.64, 18,421.79 and 9,008.91 is: 13,499.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,293.64 : 18,421.79 = 9,008.91 : x
  2. Step 2: Convert to fraction form
    12,293.64/18,421.79 = 9,008.91/x
  3. Step 3: Cross multiply
    12,293.64x = 18,421.79 × 9,008.91
  4. Step 4: Simplify right side
    12,293.64x = 165,960,203.10
  5. Step 5: Solve for x
    x = 165,960,203.10/12,293.64
  6. Step 6: Final answer
    x = 13,499.68

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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.