Home / 15,663.04-21,615.96-8,590.48

Finding the Fourth Proportional to 15,663.04, 21,615.96 and 8,590.48

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Solution

The fourth proportional to 15,663.04, 21,615.96 and 8,590.48 is: 11,855.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,663.04 : 21,615.96 = 8,590.48 : x
  2. Step 2: Convert to fraction form
    15,663.04/21,615.96 = 8,590.48/x
  3. Step 3: Cross multiply
    15,663.04x = 21,615.96 × 8,590.48
  4. Step 4: Simplify right side
    15,663.04x = 185,691,472.06
  5. Step 5: Solve for x
    x = 185,691,472.06/15,663.04
  6. Step 6: Final answer
    x = 11,855.39

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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.