Home / 14,590.12-20,133.21-8,215.47

Finding the Fourth Proportional to 14,590.12, 20,133.21 and 8,215.47

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Solution

The fourth proportional to 14,590.12, 20,133.21 and 8,215.47 is: 11,336.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,590.12 : 20,133.21 = 8,215.47 : x
  2. Step 2: Convert to fraction form
    14,590.12/20,133.21 = 8,215.47/x
  3. Step 3: Cross multiply
    14,590.12x = 20,133.21 × 8,215.47
  4. Step 4: Simplify right side
    14,590.12x = 165,403,782.76
  5. Step 5: Solve for x
    x = 165,403,782.76/14,590.12
  6. Step 6: Final answer
    x = 11,336.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.