Home / 16,875.21-25,312.19-5,188.13

Finding the Fourth Proportional to 16,875.21, 25,312.19 and 5,188.13

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Solution

The fourth proportional to 16,875.21, 25,312.19 and 5,188.13 is: 7,781.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,875.21 : 25,312.19 = 5,188.13 : x
  2. Step 2: Convert to fraction form
    16,875.21/25,312.19 = 5,188.13/x
  3. Step 3: Cross multiply
    16,875.21x = 25,312.19 × 5,188.13
  4. Step 4: Simplify right side
    16,875.21x = 131,322,779.80
  5. Step 5: Solve for x
    x = 131,322,779.80/16,875.21
  6. Step 6: Final answer
    x = 7,781.99

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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.