Home / 9,279.96-12,806.08-5,300.99

Finding the Fourth Proportional to 9,279.96, 12,806.08 and 5,300.99

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Solution

The fourth proportional to 9,279.96, 12,806.08 and 5,300.99 is: 7,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.96 : 12,806.08 = 5,300.99 : x
  2. Step 2: Convert to fraction form
    9,279.96/12,806.08 = 5,300.99/x
  3. Step 3: Cross multiply
    9,279.96x = 12,806.08 × 5,300.99
  4. Step 4: Simplify right side
    9,279.96x = 67,884,902.02
  5. Step 5: Solve for x
    x = 67,884,902.02/9,279.96
  6. Step 6: Final answer
    x = 7,315.21

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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.