Home / 19,213.08-28,798.32-8,116.48

Finding the Fourth Proportional to 19,213.08, 28,798.32 and 8,116.48

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Solution

The fourth proportional to 19,213.08, 28,798.32 and 8,116.48 is: 12,165.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213.08 : 28,798.32 = 8,116.48 : x
  2. Step 2: Convert to fraction form
    19,213.08/28,798.32 = 8,116.48/x
  3. Step 3: Cross multiply
    19,213.08x = 28,798.32 × 8,116.48
  4. Step 4: Simplify right side
    19,213.08x = 233,740,988.31
  5. Step 5: Solve for x
    x = 233,740,988.31/19,213.08
  6. Step 6: Final answer
    x = 12,165.72

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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.