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Finding the Fourth Proportional to 19,095.70, 28,630.86 and 9,739.12

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Solution

The fourth proportional to 19,095.70, 28,630.86 and 9,739.12 is: 14,602.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,095.70 : 28,630.86 = 9,739.12 : x
  2. Step 2: Convert to fraction form
    19,095.70/28,630.86 = 9,739.12/x
  3. Step 3: Cross multiply
    19,095.70x = 28,630.86 × 9,739.12
  4. Step 4: Simplify right side
    19,095.70x = 278,839,381.24
  5. Step 5: Solve for x
    x = 278,839,381.24/19,095.70
  6. Step 6: Final answer
    x = 14,602.21

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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.