Home / 9,380.53-12,944.58-5,130.80

Finding the Fourth Proportional to 9,380.53, 12,944.58 and 5,130.80

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Solution

The fourth proportional to 9,380.53, 12,944.58 and 5,130.80 is: 7,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,380.53 : 12,944.58 = 5,130.80 : x
  2. Step 2: Convert to fraction form
    9,380.53/12,944.58 = 5,130.80/x
  3. Step 3: Cross multiply
    9,380.53x = 12,944.58 × 5,130.80
  4. Step 4: Simplify right side
    9,380.53x = 66,415,986.34
  5. Step 5: Solve for x
    x = 66,415,986.34/9,380.53
  6. Step 6: Final answer
    x = 7,080.20

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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.