Home / 7,840.20-10,818.72-4,696.32

Finding the Fourth Proportional to 7,840.20, 10,818.72 and 4,696.32

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Solution

The fourth proportional to 7,840.20, 10,818.72 and 4,696.32 is: 6,480.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.20 : 10,818.72 = 4,696.32 : x
  2. Step 2: Convert to fraction form
    7,840.20/10,818.72 = 4,696.32/x
  3. Step 3: Cross multiply
    7,840.20x = 10,818.72 × 4,696.32
  4. Step 4: Simplify right side
    7,840.20x = 50,808,171.11
  5. Step 5: Solve for x
    x = 50,808,171.11/7,840.20
  6. Step 6: Final answer
    x = 6,480.47

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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.