Home / 12,609.29-18,905.15-5,585.46

Finding the Fourth Proportional to 12,609.29, 18,905.15 and 5,585.46

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Solution

The fourth proportional to 12,609.29, 18,905.15 and 5,585.46 is: 8,374.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.29 : 18,905.15 = 5,585.46 : x
  2. Step 2: Convert to fraction form
    12,609.29/18,905.15 = 5,585.46/x
  3. Step 3: Cross multiply
    12,609.29x = 18,905.15 × 5,585.46
  4. Step 4: Simplify right side
    12,609.29x = 105,593,931.19
  5. Step 5: Solve for x
    x = 105,593,931.19/12,609.29
  6. Step 6: Final answer
    x = 8,374.30

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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.