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Finding the Fourth Proportional to 6,345.88, 8,763.58 and 5,230.50

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Solution

The fourth proportional to 6,345.88, 8,763.58 and 5,230.50 is: 7,223.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.88 : 8,763.58 = 5,230.50 : x
  2. Step 2: Convert to fraction form
    6,345.88/8,763.58 = 5,230.50/x
  3. Step 3: Cross multiply
    6,345.88x = 8,763.58 × 5,230.50
  4. Step 4: Simplify right side
    6,345.88x = 45,837,905.19
  5. Step 5: Solve for x
    x = 45,837,905.19/6,345.88
  6. Step 6: Final answer
    x = 7,223.25

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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.