Home / 8,903.87-12,287.43-4,870.62

Finding the Fourth Proportional to 8,903.87, 12,287.43 and 4,870.62

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Solution

The fourth proportional to 8,903.87, 12,287.43 and 4,870.62 is: 6,721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.87 : 12,287.43 = 4,870.62 : x
  2. Step 2: Convert to fraction form
    8,903.87/12,287.43 = 4,870.62/x
  3. Step 3: Cross multiply
    8,903.87x = 12,287.43 × 4,870.62
  4. Step 4: Simplify right side
    8,903.87x = 59,847,436.86
  5. Step 5: Solve for x
    x = 59,847,436.86/8,903.87
  6. Step 6: Final answer
    x = 6,721.51

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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.