Home / 10,009.02-15,012.78-4,387.26

Finding the Fourth Proportional to 10,009.02, 15,012.78 and 4,387.26

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Solution

The fourth proportional to 10,009.02, 15,012.78 and 4,387.26 is: 6,580.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,009.02 : 15,012.78 = 4,387.26 : x
  2. Step 2: Convert to fraction form
    10,009.02/15,012.78 = 4,387.26/x
  3. Step 3: Cross multiply
    10,009.02x = 15,012.78 × 4,387.26
  4. Step 4: Simplify right side
    10,009.02x = 65,864,969.18
  5. Step 5: Solve for x
    x = 65,864,969.18/10,009.02
  6. Step 6: Final answer
    x = 6,580.56

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1.5x scale

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.