Home / 12,765.70-19,148.55-11,356.30

Finding the Fourth Proportional to 12,765.70, 19,148.55 and 11,356.30

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Solution

The fourth proportional to 12,765.70, 19,148.55 and 11,356.30 is: 17,034.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765.70 : 19,148.55 = 11,356.30 : x
  2. Step 2: Convert to fraction form
    12,765.70/19,148.55 = 11,356.30/x
  3. Step 3: Cross multiply
    12,765.70x = 19,148.55 × 11,356.30
  4. Step 4: Simplify right side
    12,765.70x = 217,456,678.37
  5. Step 5: Solve for x
    x = 217,456,678.37/12,765.70
  6. Step 6: Final answer
    x = 17,034.45

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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.