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Finding the Fourth Proportional to 8,005.51, 11,047.80 and 4,648.60

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Solution

The fourth proportional to 8,005.51, 11,047.80 and 4,648.60 is: 6,415.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.51 : 11,047.80 = 4,648.60 : x
  2. Step 2: Convert to fraction form
    8,005.51/11,047.80 = 4,648.60/x
  3. Step 3: Cross multiply
    8,005.51x = 11,047.80 × 4,648.60
  4. Step 4: Simplify right side
    8,005.51x = 51,356,803.08
  5. Step 5: Solve for x
    x = 51,356,803.08/8,005.51
  6. Step 6: Final answer
    x = 6,415.18

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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.