Home / 15,395.42-21,254.86-10,099.44

Finding the Fourth Proportional to 15,395.42, 21,254.86 and 10,099.44

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Solution

The fourth proportional to 15,395.42, 21,254.86 and 10,099.44 is: 13,943.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,395.42 : 21,254.86 = 10,099.44 : x
  2. Step 2: Convert to fraction form
    15,395.42/21,254.86 = 10,099.44/x
  3. Step 3: Cross multiply
    15,395.42x = 21,254.86 × 10,099.44
  4. Step 4: Simplify right side
    15,395.42x = 214,662,183.28
  5. Step 5: Solve for x
    x = 214,662,183.28/15,395.42
  6. Step 6: Final answer
    x = 13,943.25

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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.