Home / 9,282.18-12,809.40-5,090.70

Finding the Fourth Proportional to 9,282.18, 12,809.40 and 5,090.70

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Solution

The fourth proportional to 9,282.18, 12,809.40 and 5,090.70 is: 7,025.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,282.18 : 12,809.40 = 5,090.70 : x
  2. Step 2: Convert to fraction form
    9,282.18/12,809.40 = 5,090.70/x
  3. Step 3: Cross multiply
    9,282.18x = 12,809.40 × 5,090.70
  4. Step 4: Simplify right side
    9,282.18x = 65,208,812.58
  5. Step 5: Solve for x
    x = 65,208,812.58/9,282.18
  6. Step 6: Final answer
    x = 7,025.16

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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.