Home / 15,590.99-21,514.37-8,875.28

Finding the Fourth Proportional to 15,590.99, 21,514.37 and 8,875.28

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Solution

The fourth proportional to 15,590.99, 21,514.37 and 8,875.28 is: 12,247.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.99 : 21,514.37 = 8,875.28 : x
  2. Step 2: Convert to fraction form
    15,590.99/21,514.37 = 8,875.28/x
  3. Step 3: Cross multiply
    15,590.99x = 21,514.37 × 8,875.28
  4. Step 4: Simplify right side
    15,590.99x = 190,945,905.83
  5. Step 5: Solve for x
    x = 190,945,905.83/15,590.99
  6. Step 6: Final answer
    x = 12,247.20

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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.