Home / 19,155.60-28,742.82-8,632.89

Finding the Fourth Proportional to 19,155.60, 28,742.82 and 8,632.89

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Solution

The fourth proportional to 19,155.60, 28,742.82 and 8,632.89 is: 12,953.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.60 : 28,742.82 = 8,632.89 : x
  2. Step 2: Convert to fraction form
    19,155.60/28,742.82 = 8,632.89/x
  3. Step 3: Cross multiply
    19,155.60x = 28,742.82 × 8,632.89
  4. Step 4: Simplify right side
    19,155.60x = 248,133,603.35
  5. Step 5: Solve for x
    x = 248,133,603.35/19,155.60
  6. Step 6: Final answer
    x = 12,953.58

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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.