Home / 16,875.21-25,322.87-7,515.79

Finding the Fourth Proportional to 16,875.21, 25,322.87 and 7,515.79

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Solution

The fourth proportional to 16,875.21, 25,322.87 and 7,515.79 is: 11,278.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,875.21 : 25,322.87 = 7,515.79 : x
  2. Step 2: Convert to fraction form
    16,875.21/25,322.87 = 7,515.79/x
  3. Step 3: Cross multiply
    16,875.21x = 25,322.87 × 7,515.79
  4. Step 4: Simplify right side
    16,875.21x = 190,321,373.12
  5. Step 5: Solve for x
    x = 190,321,373.12/16,875.21
  6. Step 6: Final answer
    x = 11,278.16

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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.