Home / 15,621.14-21,549.80-10,243.55

Finding the Fourth Proportional to 15,621.14, 21,549.80 and 10,243.55

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Solution

The fourth proportional to 15,621.14, 21,549.80 and 10,243.55 is: 14,131.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621.14 : 21,549.80 = 10,243.55 : x
  2. Step 2: Convert to fraction form
    15,621.14/21,549.80 = 10,243.55/x
  3. Step 3: Cross multiply
    15,621.14x = 21,549.80 × 10,243.55
  4. Step 4: Simplify right side
    15,621.14x = 220,746,533.27
  5. Step 5: Solve for x
    x = 220,746,533.27/15,621.14
  6. Step 6: Final answer
    x = 14,131.27

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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.