Home / 9,130.24-12,599.41-5,729.09

Finding the Fourth Proportional to 9,130.24, 12,599.41 and 5,729.09

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Solution

The fourth proportional to 9,130.24, 12,599.41 and 5,729.09 is: 7,905.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.24 : 12,599.41 = 5,729.09 : x
  2. Step 2: Convert to fraction form
    9,130.24/12,599.41 = 5,729.09/x
  3. Step 3: Cross multiply
    9,130.24x = 12,599.41 × 5,729.09
  4. Step 4: Simplify right side
    9,130.24x = 72,183,114.59
  5. Step 5: Solve for x
    x = 72,183,114.59/9,130.24
  6. Step 6: Final answer
    x = 7,905.93

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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.