Home / 16,875.64-25,315.88-5,189.84

Finding the Fourth Proportional to 16,875.64, 25,315.88 and 5,189.84

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Solution

The fourth proportional to 16,875.64, 25,315.88 and 5,189.84 is: 7,785.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,875.64 : 25,315.88 = 5,189.84 : x
  2. Step 2: Convert to fraction form
    16,875.64/25,315.88 = 5,189.84/x
  3. Step 3: Cross multiply
    16,875.64x = 25,315.88 × 5,189.84
  4. Step 4: Simplify right side
    16,875.64x = 131,385,366.66
  5. Step 5: Solve for x
    x = 131,385,366.66/16,875.64
  6. Step 6: Final answer
    x = 7,785.50

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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.