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Finding the Fourth Proportional to 7,014.30, 10,509.30 and 5,920.80

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Solution

The fourth proportional to 7,014.30, 10,509.30 and 5,920.80 is: 8,870.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,014.30 : 10,509.30 = 5,920.80 : x
  2. Step 2: Convert to fraction form
    7,014.30/10,509.30 = 5,920.80/x
  3. Step 3: Cross multiply
    7,014.30x = 10,509.30 × 5,920.80
  4. Step 4: Simplify right side
    7,014.30x = 62,223,463.44
  5. Step 5: Solve for x
    x = 62,223,463.44/7,014.30
  6. Step 6: Final answer
    x = 8,870.94

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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.