Home / 12,585.75-17,368.35-6,920.60

Finding the Fourth Proportional to 12,585.75, 17,368.35 and 6,920.60

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Solution

The fourth proportional to 12,585.75, 17,368.35 and 6,920.60 is: 9,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.75 : 17,368.35 = 6,920.60 : x
  2. Step 2: Convert to fraction form
    12,585.75/17,368.35 = 6,920.60/x
  3. Step 3: Cross multiply
    12,585.75x = 17,368.35 × 6,920.60
  4. Step 4: Simplify right side
    12,585.75x = 120,199,316.17
  5. Step 5: Solve for x
    x = 120,199,316.17/12,585.75
  6. Step 6: Final answer
    x = 9,550.43

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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.