Home / 12,495.18-18,742.85-3,730.17

Finding the Fourth Proportional to 12,495.18, 18,742.85 and 3,730.17

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Solution

The fourth proportional to 12,495.18, 18,742.85 and 3,730.17 is: 5,595.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.18 : 18,742.85 = 3,730.17 : x
  2. Step 2: Convert to fraction form
    12,495.18/18,742.85 = 3,730.17/x
  3. Step 3: Cross multiply
    12,495.18x = 18,742.85 × 3,730.17
  4. Step 4: Simplify right side
    12,495.18x = 69,913,998.13
  5. Step 5: Solve for x
    x = 69,913,998.13/12,495.18
  6. Step 6: Final answer
    x = 5,595.28

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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.