Home / 12,330.45-17,015.02-7,548.39

Finding the Fourth Proportional to 12,330.45, 17,015.02 and 7,548.39

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Solution

The fourth proportional to 12,330.45, 17,015.02 and 7,548.39 is: 10,416.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,330.45 : 17,015.02 = 7,548.39 : x
  2. Step 2: Convert to fraction form
    12,330.45/17,015.02 = 7,548.39/x
  3. Step 3: Cross multiply
    12,330.45x = 17,015.02 × 7,548.39
  4. Step 4: Simplify right side
    12,330.45x = 128,436,006.82
  5. Step 5: Solve for x
    x = 128,436,006.82/12,330.45
  6. Step 6: Final answer
    x = 10,416.17

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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.