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Finding the Fourth Proportional to 14,235.16, 19,621.02 and 9,517.72

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Solution

The fourth proportional to 14,235.16, 19,621.02 and 9,517.72 is: 13,118.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,235.16 : 19,621.02 = 9,517.72 : x
  2. Step 2: Convert to fraction form
    14,235.16/19,621.02 = 9,517.72/x
  3. Step 3: Cross multiply
    14,235.16x = 19,621.02 × 9,517.72
  4. Step 4: Simplify right side
    14,235.16x = 186,747,374.47
  5. Step 5: Solve for x
    x = 186,747,374.47/14,235.16
  6. Step 6: Final answer
    x = 13,118.74

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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.