Home / 7,443.29-11,155.27-5,681.81

Finding the Fourth Proportional to 7,443.29, 11,155.27 and 5,681.81

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Solution

The fourth proportional to 7,443.29, 11,155.27 and 5,681.81 is: 8,515.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,443.29 : 11,155.27 = 5,681.81 : x
  2. Step 2: Convert to fraction form
    7,443.29/11,155.27 = 5,681.81/x
  3. Step 3: Cross multiply
    7,443.29x = 11,155.27 × 5,681.81
  4. Step 4: Simplify right side
    7,443.29x = 63,382,124.64
  5. Step 5: Solve for x
    x = 63,382,124.64/7,443.29
  6. Step 6: Final answer
    x = 8,515.34

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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.