Home / 14,370.90-21,572.55-8,530.80

Finding the Fourth Proportional to 14,370.90, 21,572.55 and 8,530.80

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Solution

The fourth proportional to 14,370.90, 21,572.55 and 8,530.80 is: 12,805.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,370.90 : 21,572.55 = 8,530.80 : x
  2. Step 2: Convert to fraction form
    14,370.90/21,572.55 = 8,530.80/x
  3. Step 3: Cross multiply
    14,370.90x = 21,572.55 × 8,530.80
  4. Step 4: Simplify right side
    14,370.90x = 184,031,109.54
  5. Step 5: Solve for x
    x = 184,031,109.54/14,370.90
  6. Step 6: Final answer
    x = 12,805.82

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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.