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Finding the Fourth Proportional to 12,934.56, 19,384.80 and 9,388.48

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Solution

The fourth proportional to 12,934.56, 19,384.80 and 9,388.48 is: 14,070.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,934.56 : 19,384.80 = 9,388.48 : x
  2. Step 2: Convert to fraction form
    12,934.56/19,384.80 = 9,388.48/x
  3. Step 3: Cross multiply
    12,934.56x = 19,384.80 × 9,388.48
  4. Step 4: Simplify right side
    12,934.56x = 181,993,807.10
  5. Step 5: Solve for x
    x = 181,993,807.10/12,934.56
  6. Step 6: Final answer
    x = 14,070.35

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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.