Home / 19,115.32-28,648.76-10,800.01

Finding the Fourth Proportional to 19,115.32, 28,648.76 and 10,800.01

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Solution

The fourth proportional to 19,115.32, 28,648.76 and 10,800.01 is: 16,186.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.32 : 28,648.76 = 10,800.01 : x
  2. Step 2: Convert to fraction form
    19,115.32/28,648.76 = 10,800.01/x
  3. Step 3: Cross multiply
    19,115.32x = 28,648.76 × 10,800.01
  4. Step 4: Simplify right side
    19,115.32x = 309,406,886.85
  5. Step 5: Solve for x
    x = 309,406,886.85/19,115.32
  6. Step 6: Final answer
    x = 16,186.33

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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.