Home / 19,159.08-28,738.62-5,307.72

Finding the Fourth Proportional to 19,159.08, 28,738.62 and 5,307.72

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Solution

The fourth proportional to 19,159.08, 28,738.62 and 5,307.72 is: 7,961.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,159.08 : 28,738.62 = 5,307.72 : x
  2. Step 2: Convert to fraction form
    19,159.08/28,738.62 = 5,307.72/x
  3. Step 3: Cross multiply
    19,159.08x = 28,738.62 × 5,307.72
  4. Step 4: Simplify right side
    19,159.08x = 152,536,548.15
  5. Step 5: Solve for x
    x = 152,536,548.15/19,159.08
  6. Step 6: Final answer
    x = 7,961.58

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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.