Home / 7,352.60-10,130.74-4,990.64

Finding the Fourth Proportional to 7,352.60, 10,130.74 and 4,990.64

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Solution

The fourth proportional to 7,352.60, 10,130.74 and 4,990.64 is: 6,876.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,352.60 : 10,130.74 = 4,990.64 : x
  2. Step 2: Convert to fraction form
    7,352.60/10,130.74 = 4,990.64/x
  3. Step 3: Cross multiply
    7,352.60x = 10,130.74 × 4,990.64
  4. Step 4: Simplify right side
    7,352.60x = 50,558,813.14
  5. Step 5: Solve for x
    x = 50,558,813.14/7,352.60
  6. Step 6: Final answer
    x = 6,876.32

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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.