Home / 8,705.09-12,013.38-4,928.45

Finding the Fourth Proportional to 8,705.09, 12,013.38 and 4,928.45

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Solution

The fourth proportional to 8,705.09, 12,013.38 and 4,928.45 is: 6,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.09 : 12,013.38 = 4,928.45 : x
  2. Step 2: Convert to fraction form
    8,705.09/12,013.38 = 4,928.45/x
  3. Step 3: Cross multiply
    8,705.09x = 12,013.38 × 4,928.45
  4. Step 4: Simplify right side
    8,705.09x = 59,207,282.59
  5. Step 5: Solve for x
    x = 59,207,282.59/8,705.09
  6. Step 6: Final answer
    x = 6,801.45

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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.