Home / 14,730.69-20,323.78-8,356.80

Finding the Fourth Proportional to 14,730.69, 20,323.78 and 8,356.80

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Solution

The fourth proportional to 14,730.69, 20,323.78 and 8,356.80 is: 11,529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,730.69 : 20,323.78 = 8,356.80 : x
  2. Step 2: Convert to fraction form
    14,730.69/20,323.78 = 8,356.80/x
  3. Step 3: Cross multiply
    14,730.69x = 20,323.78 × 8,356.80
  4. Step 4: Simplify right side
    14,730.69x = 169,841,820.03
  5. Step 5: Solve for x
    x = 169,841,820.03/14,730.69
  6. Step 6: Final answer
    x = 11,529.79

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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.