Home / 7,880.08-11,770.24-6,130.48

Finding the Fourth Proportional to 7,880.08, 11,770.24 and 6,130.48

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Solution

The fourth proportional to 7,880.08, 11,770.24 and 6,130.48 is: 9,156.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.08 : 11,770.24 = 6,130.48 : x
  2. Step 2: Convert to fraction form
    7,880.08/11,770.24 = 6,130.48/x
  3. Step 3: Cross multiply
    7,880.08x = 11,770.24 × 6,130.48
  4. Step 4: Simplify right side
    7,880.08x = 72,157,220.92
  5. Step 5: Solve for x
    x = 72,157,220.92/7,880.08
  6. Step 6: Final answer
    x = 9,156.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.