Home / 10,323.72-15,485.67-2,928.42

Finding the Fourth Proportional to 10,323.72, 15,485.67 and 2,928.42

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Solution

The fourth proportional to 10,323.72, 15,485.67 and 2,928.42 is: 4,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,323.72 : 15,485.67 = 2,928.42 : x
  2. Step 2: Convert to fraction form
    10,323.72/15,485.67 = 2,928.42/x
  3. Step 3: Cross multiply
    10,323.72x = 15,485.67 × 2,928.42
  4. Step 4: Simplify right side
    10,323.72x = 45,348,545.74
  5. Step 5: Solve for x
    x = 45,348,545.74/10,323.72
  6. Step 6: Final answer
    x = 4,392.66

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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.