Home / 15,870.57-23,806.47-4,778.83

Finding the Fourth Proportional to 15,870.57, 23,806.47 and 4,778.83

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Solution

The fourth proportional to 15,870.57, 23,806.47 and 4,778.83 is: 7,168.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,870.57 : 23,806.47 = 4,778.83 : x
  2. Step 2: Convert to fraction form
    15,870.57/23,806.47 = 4,778.83/x
  3. Step 3: Cross multiply
    15,870.57x = 23,806.47 × 4,778.83
  4. Step 4: Simplify right side
    15,870.57x = 113,767,120.71
  5. Step 5: Solve for x
    x = 113,767,120.71/15,870.57
  6. Step 6: Final answer
    x = 7,168.43

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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.