Home / 11,785.06-16,267.76-7,807.47

Finding the Fourth Proportional to 11,785.06, 16,267.76 and 7,807.47

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Solution

The fourth proportional to 11,785.06, 16,267.76 and 7,807.47 is: 10,777.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.06 : 16,267.76 = 7,807.47 : x
  2. Step 2: Convert to fraction form
    11,785.06/16,267.76 = 7,807.47/x
  3. Step 3: Cross multiply
    11,785.06x = 16,267.76 × 7,807.47
  4. Step 4: Simplify right side
    11,785.06x = 127,010,048.17
  5. Step 5: Solve for x
    x = 127,010,048.17/11,785.06
  6. Step 6: Final answer
    x = 10,777.21

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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.