Home / 12,656.20-18,984.30-10,323.40

Finding the Fourth Proportional to 12,656.20, 18,984.30 and 10,323.40

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Solution

The fourth proportional to 12,656.20, 18,984.30 and 10,323.40 is: 15,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.20 : 18,984.30 = 10,323.40 : x
  2. Step 2: Convert to fraction form
    12,656.20/18,984.30 = 10,323.40/x
  3. Step 3: Cross multiply
    12,656.20x = 18,984.30 × 10,323.40
  4. Step 4: Simplify right side
    12,656.20x = 195,982,522.62
  5. Step 5: Solve for x
    x = 195,982,522.62/12,656.20
  6. Step 6: Final answer
    x = 15,485.10

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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.