Home / 8,521.95-12,783.65-2,680.23

Finding the Fourth Proportional to 8,521.95, 12,783.65 and 2,680.23

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Solution

The fourth proportional to 8,521.95, 12,783.65 and 2,680.23 is: 4,020.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.95 : 12,783.65 = 2,680.23 : x
  2. Step 2: Convert to fraction form
    8,521.95/12,783.65 = 2,680.23/x
  3. Step 3: Cross multiply
    8,521.95x = 12,783.65 × 2,680.23
  4. Step 4: Simplify right side
    8,521.95x = 34,263,108.84
  5. Step 5: Solve for x
    x = 34,263,108.84/8,521.95
  6. Step 6: Final answer
    x = 4,020.57

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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.