Home / 14,643.03-20,207.32-7,928.61

Finding the Fourth Proportional to 14,643.03, 20,207.32 and 7,928.61

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Solution

The fourth proportional to 14,643.03, 20,207.32 and 7,928.61 is: 10,941.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,643.03 : 20,207.32 = 7,928.61 : x
  2. Step 2: Convert to fraction form
    14,643.03/20,207.32 = 7,928.61/x
  3. Step 3: Cross multiply
    14,643.03x = 20,207.32 × 7,928.61
  4. Step 4: Simplify right side
    14,643.03x = 160,215,959.43
  5. Step 5: Solve for x
    x = 160,215,959.43/14,643.03
  6. Step 6: Final answer
    x = 10,941.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.