Home / 12,400.10-18,600.18-4,607.36

Finding the Fourth Proportional to 12,400.10, 18,600.18 and 4,607.36

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Solution

The fourth proportional to 12,400.10, 18,600.18 and 4,607.36 is: 6,911.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.10 : 18,600.18 = 4,607.36 : x
  2. Step 2: Convert to fraction form
    12,400.10/18,600.18 = 4,607.36/x
  3. Step 3: Cross multiply
    12,400.10x = 18,600.18 × 4,607.36
  4. Step 4: Simplify right side
    12,400.10x = 85,697,725.32
  5. Step 5: Solve for x
    x = 85,697,725.32/12,400.10
  6. Step 6: Final answer
    x = 6,911.05

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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.