Home / 8,929.31-12,323.75-5,153.09

Finding the Fourth Proportional to 8,929.31, 12,323.75 and 5,153.09

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Solution

The fourth proportional to 8,929.31, 12,323.75 and 5,153.09 is: 7,112.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.31 : 12,323.75 = 5,153.09 : x
  2. Step 2: Convert to fraction form
    8,929.31/12,323.75 = 5,153.09/x
  3. Step 3: Cross multiply
    8,929.31x = 12,323.75 × 5,153.09
  4. Step 4: Simplify right side
    8,929.31x = 63,505,305.50
  5. Step 5: Solve for x
    x = 63,505,305.50/8,929.31
  6. Step 6: Final answer
    x = 7,112.01

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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.