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Finding the Fourth Proportional to 8,395.65, 12,594.99 and 4,235.79

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Solution

The fourth proportional to 8,395.65, 12,594.99 and 4,235.79 is: 6,354.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,395.65 : 12,594.99 = 4,235.79 : x
  2. Step 2: Convert to fraction form
    8,395.65/12,594.99 = 4,235.79/x
  3. Step 3: Cross multiply
    8,395.65x = 12,594.99 × 4,235.79
  4. Step 4: Simplify right side
    8,395.65x = 53,349,795.81
  5. Step 5: Solve for x
    x = 53,349,795.81/8,395.65
  6. Step 6: Final answer
    x = 6,354.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.