Home / 18,514.04-25,539.84-12,543.68

Finding the Fourth Proportional to 18,514.04, 25,539.84 and 12,543.68

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Solution

The fourth proportional to 18,514.04, 25,539.84 and 12,543.68 is: 17,303.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.04 : 25,539.84 = 12,543.68 : x
  2. Step 2: Convert to fraction form
    18,514.04/25,539.84 = 12,543.68/x
  3. Step 3: Cross multiply
    18,514.04x = 25,539.84 × 12,543.68
  4. Step 4: Simplify right side
    18,514.04x = 320,363,580.21
  5. Step 5: Solve for x
    x = 320,363,580.21/18,514.04
  6. Step 6: Final answer
    x = 17,303.82

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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.