Home / 12,397.40-18,580.30-5,809.08

Finding the Fourth Proportional to 12,397.40, 18,580.30 and 5,809.08

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Solution

The fourth proportional to 12,397.40, 18,580.30 and 5,809.08 is: 8,706.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.40 : 18,580.30 = 5,809.08 : x
  2. Step 2: Convert to fraction form
    12,397.40/18,580.30 = 5,809.08/x
  3. Step 3: Cross multiply
    12,397.40x = 18,580.30 × 5,809.08
  4. Step 4: Simplify right side
    12,397.40x = 107,934,449.12
  5. Step 5: Solve for x
    x = 107,934,449.12/12,397.40
  6. Step 6: Final answer
    x = 8,706.22

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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.