Home / 18,875.96-28,312.28-6,395.72

Finding the Fourth Proportional to 18,875.96, 28,312.28 and 6,395.72

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Solution

The fourth proportional to 18,875.96, 28,312.28 and 6,395.72 is: 9,593.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.96 : 28,312.28 = 6,395.72 : x
  2. Step 2: Convert to fraction form
    18,875.96/28,312.28 = 6,395.72/x
  3. Step 3: Cross multiply
    18,875.96x = 28,312.28 × 6,395.72
  4. Step 4: Simplify right side
    18,875.96x = 181,077,415.44
  5. Step 5: Solve for x
    x = 181,077,415.44/18,875.96
  6. Step 6: Final answer
    x = 9,593.02

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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.