Home / 9,260.20-12,765.90-5,721.40

Finding the Fourth Proportional to 9,260.20, 12,765.90 and 5,721.40

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Solution

The fourth proportional to 9,260.20, 12,765.90 and 5,721.40 is: 7,887.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,260.20 : 12,765.90 = 5,721.40 : x
  2. Step 2: Convert to fraction form
    9,260.20/12,765.90 = 5,721.40/x
  3. Step 3: Cross multiply
    9,260.20x = 12,765.90 × 5,721.40
  4. Step 4: Simplify right side
    9,260.20x = 73,038,820.26
  5. Step 5: Solve for x
    x = 73,038,820.26/9,260.20
  6. Step 6: Final answer
    x = 7,887.39

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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.