Home / 12,352.72-18,510.52-5,771.20

Finding the Fourth Proportional to 12,352.72, 18,510.52 and 5,771.20

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Solution

The fourth proportional to 12,352.72, 18,510.52 and 5,771.20 is: 8,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,352.72 : 18,510.52 = 5,771.20 : x
  2. Step 2: Convert to fraction form
    12,352.72/18,510.52 = 5,771.20/x
  3. Step 3: Cross multiply
    12,352.72x = 18,510.52 × 5,771.20
  4. Step 4: Simplify right side
    12,352.72x = 106,827,913.02
  5. Step 5: Solve for x
    x = 106,827,913.02/12,352.72
  6. Step 6: Final answer
    x = 8,648.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.