Home / 19,176.48-28,771.88-8,643.34

Finding the Fourth Proportional to 19,176.48, 28,771.88 and 8,643.34

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Solution

The fourth proportional to 19,176.48, 28,771.88 and 8,643.34 is: 12,968.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,176.48 : 28,771.88 = 8,643.34 : x
  2. Step 2: Convert to fraction form
    19,176.48/28,771.88 = 8,643.34/x
  3. Step 3: Cross multiply
    19,176.48x = 28,771.88 × 8,643.34
  4. Step 4: Simplify right side
    19,176.48x = 248,685,141.28
  5. Step 5: Solve for x
    x = 248,685,141.28/19,176.48
  6. Step 6: Final answer
    x = 12,968.24

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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.