Home / 13,870.62-20,804.07-5,555.46

Finding the Fourth Proportional to 13,870.62, 20,804.07 and 5,555.46

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Solution

The fourth proportional to 13,870.62, 20,804.07 and 5,555.46 is: 8,332.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,870.62 : 20,804.07 = 5,555.46 : x
  2. Step 2: Convert to fraction form
    13,870.62/20,804.07 = 5,555.46/x
  3. Step 3: Cross multiply
    13,870.62x = 20,804.07 × 5,555.46
  4. Step 4: Simplify right side
    13,870.62x = 115,576,178.72
  5. Step 5: Solve for x
    x = 115,576,178.72/13,870.62
  6. Step 6: Final answer
    x = 8,332.45

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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.