Home / 18,875.91-28,294.02-6,384.09

Finding the Fourth Proportional to 18,875.91, 28,294.02 and 6,384.09

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Solution

The fourth proportional to 18,875.91, 28,294.02 and 6,384.09 is: 9,569.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.91 : 28,294.02 = 6,384.09 : x
  2. Step 2: Convert to fraction form
    18,875.91/28,294.02 = 6,384.09/x
  3. Step 3: Cross multiply
    18,875.91x = 28,294.02 × 6,384.09
  4. Step 4: Simplify right side
    18,875.91x = 180,631,570.14
  5. Step 5: Solve for x
    x = 180,631,570.14/18,875.91
  6. Step 6: Final answer
    x = 9,569.42

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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.