Home / 13,341.61-20,019.56-8,660.52

Finding the Fourth Proportional to 13,341.61, 20,019.56 and 8,660.52

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Solution

The fourth proportional to 13,341.61, 20,019.56 and 8,660.52 is: 12,995.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,341.61 : 20,019.56 = 8,660.52 : x
  2. Step 2: Convert to fraction form
    13,341.61/20,019.56 = 8,660.52/x
  3. Step 3: Cross multiply
    13,341.61x = 20,019.56 × 8,660.52
  4. Step 4: Simplify right side
    13,341.61x = 173,379,756.47
  5. Step 5: Solve for x
    x = 173,379,756.47/13,341.61
  6. Step 6: Final answer
    x = 12,995.41

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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.