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Finding the Fourth Proportional to 14,458.30, 21,697.05 and 8,218.30

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Solution

The fourth proportional to 14,458.30, 21,697.05 and 8,218.30 is: 12,332.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,458.30 : 21,697.05 = 8,218.30 : x
  2. Step 2: Convert to fraction form
    14,458.30/21,697.05 = 8,218.30/x
  3. Step 3: Cross multiply
    14,458.30x = 21,697.05 × 8,218.30
  4. Step 4: Simplify right side
    14,458.30x = 178,312,866.02
  5. Step 5: Solve for x
    x = 178,312,866.02/14,458.30
  6. Step 6: Final answer
    x = 12,332.91

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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.