Home / 18,849.96-28,280.16-5,702.40

Finding the Fourth Proportional to 18,849.96, 28,280.16 and 5,702.40

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Solution

The fourth proportional to 18,849.96, 28,280.16 and 5,702.40 is: 8,555.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,849.96 : 28,280.16 = 5,702.40 : x
  2. Step 2: Convert to fraction form
    18,849.96/28,280.16 = 5,702.40/x
  3. Step 3: Cross multiply
    18,849.96x = 28,280.16 × 5,702.40
  4. Step 4: Simplify right side
    18,849.96x = 161,264,784.38
  5. Step 5: Solve for x
    x = 161,264,784.38/18,849.96
  6. Step 6: Final answer
    x = 8,555.18

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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.