Home / 9,120.09-12,585.73-4,928.34

Finding the Fourth Proportional to 9,120.09, 12,585.73 and 4,928.34

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Solution

The fourth proportional to 9,120.09, 12,585.73 and 4,928.34 is: 6,801.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.09 : 12,585.73 = 4,928.34 : x
  2. Step 2: Convert to fraction form
    9,120.09/12,585.73 = 4,928.34/x
  3. Step 3: Cross multiply
    9,120.09x = 12,585.73 × 4,928.34
  4. Step 4: Simplify right side
    9,120.09x = 62,026,800.70
  5. Step 5: Solve for x
    x = 62,026,800.70/9,120.09
  6. Step 6: Final answer
    x = 6,801.11

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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.