Home / 13,089.66-19,638.65-4,330.72

Finding the Fourth Proportional to 13,089.66, 19,638.65 and 4,330.72

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Solution

The fourth proportional to 13,089.66, 19,638.65 and 4,330.72 is: 6,497.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,089.66 : 19,638.65 = 4,330.72 : x
  2. Step 2: Convert to fraction form
    13,089.66/19,638.65 = 4,330.72/x
  3. Step 3: Cross multiply
    13,089.66x = 19,638.65 × 4,330.72
  4. Step 4: Simplify right side
    13,089.66x = 85,049,494.33
  5. Step 5: Solve for x
    x = 85,049,494.33/13,089.66
  6. Step 6: Final answer
    x = 6,497.46

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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.