Home / 9,784.28-13,500.20-5,806.70

Finding the Fourth Proportional to 9,784.28, 13,500.20 and 5,806.70

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Solution

The fourth proportional to 9,784.28, 13,500.20 and 5,806.70 is: 8,012.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,784.28 : 13,500.20 = 5,806.70 : x
  2. Step 2: Convert to fraction form
    9,784.28/13,500.20 = 5,806.70/x
  3. Step 3: Cross multiply
    9,784.28x = 13,500.20 × 5,806.70
  4. Step 4: Simplify right side
    9,784.28x = 78,391,611.34
  5. Step 5: Solve for x
    x = 78,391,611.34/9,784.28
  6. Step 6: Final answer
    x = 8,012.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.