Home / 16,405.06-22,640.88-9,332.60

Finding the Fourth Proportional to 16,405.06, 22,640.88 and 9,332.60

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Solution

The fourth proportional to 16,405.06, 22,640.88 and 9,332.60 is: 12,880.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,405.06 : 22,640.88 = 9,332.60 : x
  2. Step 2: Convert to fraction form
    16,405.06/22,640.88 = 9,332.60/x
  3. Step 3: Cross multiply
    16,405.06x = 22,640.88 × 9,332.60
  4. Step 4: Simplify right side
    16,405.06x = 211,298,276.69
  5. Step 5: Solve for x
    x = 211,298,276.69/16,405.06
  6. Step 6: Final answer
    x = 12,880.07

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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.