Home / 13,124.48-18,106.64-8,650.64

Finding the Fourth Proportional to 13,124.48, 18,106.64 and 8,650.64

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Solution

The fourth proportional to 13,124.48, 18,106.64 and 8,650.64 is: 11,934.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.48 : 18,106.64 = 8,650.64 : x
  2. Step 2: Convert to fraction form
    13,124.48/18,106.64 = 8,650.64/x
  3. Step 3: Cross multiply
    13,124.48x = 18,106.64 × 8,650.64
  4. Step 4: Simplify right side
    13,124.48x = 156,634,024.25
  5. Step 5: Solve for x
    x = 156,634,024.25/13,124.48
  6. Step 6: Final answer
    x = 11,934.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.