Home / 12,558.62-18,827.20-5,158.46

Finding the Fourth Proportional to 12,558.62, 18,827.20 and 5,158.46

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Solution

The fourth proportional to 12,558.62, 18,827.20 and 5,158.46 is: 7,733.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.62 : 18,827.20 = 5,158.46 : x
  2. Step 2: Convert to fraction form
    12,558.62/18,827.20 = 5,158.46/x
  3. Step 3: Cross multiply
    12,558.62x = 18,827.20 × 5,158.46
  4. Step 4: Simplify right side
    12,558.62x = 97,119,358.11
  5. Step 5: Solve for x
    x = 97,119,358.11/12,558.62
  6. Step 6: Final answer
    x = 7,733.28

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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.