Home / 12,103.60-18,158.10-4,707.40

Finding the Fourth Proportional to 12,103.60, 18,158.10 and 4,707.40

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Solution

The fourth proportional to 12,103.60, 18,158.10 and 4,707.40 is: 7,062.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103.60 : 18,158.10 = 4,707.40 : x
  2. Step 2: Convert to fraction form
    12,103.60/18,158.10 = 4,707.40/x
  3. Step 3: Cross multiply
    12,103.60x = 18,158.10 × 4,707.40
  4. Step 4: Simplify right side
    12,103.60x = 85,477,439.94
  5. Step 5: Solve for x
    x = 85,477,439.94/12,103.60
  6. Step 6: Final answer
    x = 7,062.15

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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.