Home / 19,191.72-28,775.16-7,506.12

Finding the Fourth Proportional to 19,191.72, 28,775.16 and 7,506.12

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Solution

The fourth proportional to 19,191.72, 28,775.16 and 7,506.12 is: 11,254.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.72 : 28,775.16 = 7,506.12 : x
  2. Step 2: Convert to fraction form
    19,191.72/28,775.16 = 7,506.12/x
  3. Step 3: Cross multiply
    19,191.72x = 28,775.16 × 7,506.12
  4. Step 4: Simplify right side
    19,191.72x = 215,989,803.98
  5. Step 5: Solve for x
    x = 215,989,803.98/19,191.72
  6. Step 6: Final answer
    x = 11,254.32

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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.