Home / 12,663.16-18,984.34-8,225.40

Finding the Fourth Proportional to 12,663.16, 18,984.34 and 8,225.40

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Solution

The fourth proportional to 12,663.16, 18,984.34 and 8,225.40 is: 12,331.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,663.16 : 18,984.34 = 8,225.40 : x
  2. Step 2: Convert to fraction form
    12,663.16/18,984.34 = 8,225.40/x
  3. Step 3: Cross multiply
    12,663.16x = 18,984.34 × 8,225.40
  4. Step 4: Simplify right side
    12,663.16x = 156,153,790.24
  5. Step 5: Solve for x
    x = 156,153,790.24/12,663.16
  6. Step 6: Final answer
    x = 12,331.34

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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.