Home / 11,036.40-15,226.80-6,783

Finding the Fourth Proportional to 11,036.40, 15,226.80 and 6,783

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Solution

The fourth proportional to 11,036.40, 15,226.80 and 6,783 is: 9,358.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,036.40 : 15,226.80 = 6,783 : x
  2. Step 2: Convert to fraction form
    11,036.40/15,226.80 = 6,783/x
  3. Step 3: Cross multiply
    11,036.40x = 15,226.80 × 6,783
  4. Step 4: Simplify right side
    11,036.40x = 103,283,384.40
  5. Step 5: Solve for x
    x = 103,283,384.40/11,036.40
  6. Step 6: Final answer
    x = 9,358.43

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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.