Home / 7,913.54-10,920.69-4,770.34

Finding the Fourth Proportional to 7,913.54, 10,920.69 and 4,770.34

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Solution

The fourth proportional to 7,913.54, 10,920.69 and 4,770.34 is: 6,583.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.54 : 10,920.69 = 4,770.34 : x
  2. Step 2: Convert to fraction form
    7,913.54/10,920.69 = 4,770.34/x
  3. Step 3: Cross multiply
    7,913.54x = 10,920.69 × 4,770.34
  4. Step 4: Simplify right side
    7,913.54x = 52,095,377.03
  5. Step 5: Solve for x
    x = 52,095,377.03/7,913.54
  6. Step 6: Final answer
    x = 6,583.07

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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.