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Finding the Fourth Proportional to 10,858.60, 16,263.60 and 9,400.60

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Solution

The fourth proportional to 10,858.60, 16,263.60 and 9,400.60 is: 14,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.60 : 16,263.60 = 9,400.60 : x
  2. Step 2: Convert to fraction form
    10,858.60/16,263.60 = 9,400.60/x
  3. Step 3: Cross multiply
    10,858.60x = 16,263.60 × 9,400.60
  4. Step 4: Simplify right side
    10,858.60x = 152,887,598.16
  5. Step 5: Solve for x
    x = 152,887,598.16/10,858.60
  6. Step 6: Final answer
    x = 14,079.86

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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.