Home / 19,074.83-28,607.04-7,979.72

Finding the Fourth Proportional to 19,074.83, 28,607.04 and 7,979.72

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Solution

The fourth proportional to 19,074.83, 28,607.04 and 7,979.72 is: 11,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,074.83 : 28,607.04 = 7,979.72 : x
  2. Step 2: Convert to fraction form
    19,074.83/28,607.04 = 7,979.72/x
  3. Step 3: Cross multiply
    19,074.83x = 28,607.04 × 7,979.72
  4. Step 4: Simplify right side
    19,074.83x = 228,276,117.66
  5. Step 5: Solve for x
    x = 228,276,117.66/19,074.83
  6. Step 6: Final answer
    x = 11,967.40

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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.