Home / 15,356.56-21,180.67-10,578.03

Finding the Fourth Proportional to 15,356.56, 21,180.67 and 10,578.03

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Solution

The fourth proportional to 15,356.56, 21,180.67 and 10,578.03 is: 14,589.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,356.56 : 21,180.67 = 10,578.03 : x
  2. Step 2: Convert to fraction form
    15,356.56/21,180.67 = 10,578.03/x
  3. Step 3: Cross multiply
    15,356.56x = 21,180.67 × 10,578.03
  4. Step 4: Simplify right side
    15,356.56x = 224,049,762.68
  5. Step 5: Solve for x
    x = 224,049,762.68/15,356.56
  6. Step 6: Final answer
    x = 14,589.84

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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.