Home / 13,750.19-20,626.47-4,391.54

Finding the Fourth Proportional to 13,750.19, 20,626.47 and 4,391.54

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Solution

The fourth proportional to 13,750.19, 20,626.47 and 4,391.54 is: 6,587.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.19 : 20,626.47 = 4,391.54 : x
  2. Step 2: Convert to fraction form
    13,750.19/20,626.47 = 4,391.54/x
  3. Step 3: Cross multiply
    13,750.19x = 20,626.47 × 4,391.54
  4. Step 4: Simplify right side
    13,750.19x = 90,581,864.93
  5. Step 5: Solve for x
    x = 90,581,864.93/13,750.19
  6. Step 6: Final answer
    x = 6,587.68

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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.