Home / 17,378.45-26,066.64-8,490.35

Finding the Fourth Proportional to 17,378.45, 26,066.64 and 8,490.35

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Solution

The fourth proportional to 17,378.45, 26,066.64 and 8,490.35 is: 12,735.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,378.45 : 26,066.64 = 8,490.35 : x
  2. Step 2: Convert to fraction form
    17,378.45/26,066.64 = 8,490.35/x
  3. Step 3: Cross multiply
    17,378.45x = 26,066.64 × 8,490.35
  4. Step 4: Simplify right side
    17,378.45x = 221,314,993.93
  5. Step 5: Solve for x
    x = 221,314,993.93/17,378.45
  6. Step 6: Final answer
    x = 12,735.03

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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.