Home / 18,864.90-28,301.60-6,384.22

Finding the Fourth Proportional to 18,864.90, 28,301.60 and 6,384.22

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Solution

The fourth proportional to 18,864.90, 28,301.60 and 6,384.22 is: 9,577.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.90 : 28,301.60 = 6,384.22 : x
  2. Step 2: Convert to fraction form
    18,864.90/28,301.60 = 6,384.22/x
  3. Step 3: Cross multiply
    18,864.90x = 28,301.60 × 6,384.22
  4. Step 4: Simplify right side
    18,864.90x = 180,683,585.96
  5. Step 5: Solve for x
    x = 180,683,585.96/18,864.90
  6. Step 6: Final answer
    x = 9,577.77

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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.