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Finding the Fourth Proportional to 10,893.64, 15,036.42 and 6,917.80

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Solution

The fourth proportional to 10,893.64, 15,036.42 and 6,917.80 is: 9,548.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,893.64 : 15,036.42 = 6,917.80 : x
  2. Step 2: Convert to fraction form
    10,893.64/15,036.42 = 6,917.80/x
  3. Step 3: Cross multiply
    10,893.64x = 15,036.42 × 6,917.80
  4. Step 4: Simplify right side
    10,893.64x = 104,018,946.28
  5. Step 5: Solve for x
    x = 104,018,946.28/10,893.64
  6. Step 6: Final answer
    x = 9,548.59

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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.