Home / 16,405.37-22,640.15-9,237.76

Finding the Fourth Proportional to 16,405.37, 22,640.15 and 9,237.76

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Solution

The fourth proportional to 16,405.37, 22,640.15 and 9,237.76 is: 12,748.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,405.37 : 22,640.15 = 9,237.76 : x
  2. Step 2: Convert to fraction form
    16,405.37/22,640.15 = 9,237.76/x
  3. Step 3: Cross multiply
    16,405.37x = 22,640.15 × 9,237.76
  4. Step 4: Simplify right side
    16,405.37x = 209,144,272.06
  5. Step 5: Solve for x
    x = 209,144,272.06/16,405.37
  6. Step 6: Final answer
    x = 12,748.53

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Half scale
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Double scale
Find fourth proportional to 16,406.37, 22,641.53 and 9,238.76
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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.