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Finding the Fourth Proportional to 8,983.81, 13,477.16 and 3,790.45

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Solution

The fourth proportional to 8,983.81, 13,477.16 and 3,790.45 is: 5,686.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.81 : 13,477.16 = 3,790.45 : x
  2. Step 2: Convert to fraction form
    8,983.81/13,477.16 = 3,790.45/x
  3. Step 3: Cross multiply
    8,983.81x = 13,477.16 × 3,790.45
  4. Step 4: Simplify right side
    8,983.81x = 51,084,482.17
  5. Step 5: Solve for x
    x = 51,084,482.17/8,983.81
  6. Step 6: Final answer
    x = 5,686.28

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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.