Home / 12,556.15-18,834.23-9,784.90

Finding the Fourth Proportional to 12,556.15, 18,834.23 and 9,784.90

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Solution

The fourth proportional to 12,556.15, 18,834.23 and 9,784.90 is: 14,677.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.15 : 18,834.23 = 9,784.90 : x
  2. Step 2: Convert to fraction form
    12,556.15/18,834.23 = 9,784.90/x
  3. Step 3: Cross multiply
    12,556.15x = 18,834.23 × 9,784.90
  4. Step 4: Simplify right side
    12,556.15x = 184,291,105.13
  5. Step 5: Solve for x
    x = 184,291,105.13/12,556.15
  6. Step 6: Final answer
    x = 14,677.35

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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.