Home / 10,664.40-16,005.31-7,547.43

Finding the Fourth Proportional to 10,664.40, 16,005.31 and 7,547.43

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Solution

The fourth proportional to 10,664.40, 16,005.31 and 7,547.43 is: 11,327.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,664.40 : 16,005.31 = 7,547.43 : x
  2. Step 2: Convert to fraction form
    10,664.40/16,005.31 = 7,547.43/x
  3. Step 3: Cross multiply
    10,664.40x = 16,005.31 × 7,547.43
  4. Step 4: Simplify right side
    10,664.40x = 120,798,918.59
  5. Step 5: Solve for x
    x = 120,798,918.59/10,664.40
  6. Step 6: Final answer
    x = 11,327.31

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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.