Home / 15,629.08-21,568.74-8,555.56

Finding the Fourth Proportional to 15,629.08, 21,568.74 and 8,555.56

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Solution

The fourth proportional to 15,629.08, 21,568.74 and 8,555.56 is: 11,807.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.08 : 21,568.74 = 8,555.56 : x
  2. Step 2: Convert to fraction form
    15,629.08/21,568.74 = 8,555.56/x
  3. Step 3: Cross multiply
    15,629.08x = 21,568.74 × 8,555.56
  4. Step 4: Simplify right side
    15,629.08x = 184,532,649.19
  5. Step 5: Solve for x
    x = 184,532,649.19/15,629.08
  6. Step 6: Final answer
    x = 11,807.01

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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.