Home / 15,590.34-21,536.37-13,911.18

Finding the Fourth Proportional to 15,590.34, 21,536.37 and 13,911.18

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Solution

The fourth proportional to 15,590.34, 21,536.37 and 13,911.18 is: 19,216.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.34 : 21,536.37 = 13,911.18 : x
  2. Step 2: Convert to fraction form
    15,590.34/21,536.37 = 13,911.18/x
  3. Step 3: Cross multiply
    15,590.34x = 21,536.37 × 13,911.18
  4. Step 4: Simplify right side
    15,590.34x = 299,596,319.62
  5. Step 5: Solve for x
    x = 299,596,319.62/15,590.34
  6. Step 6: Final answer
    x = 19,216.79

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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.