Home / 18,985.48-28,479.00-6,514.08

Finding the Fourth Proportional to 18,985.48, 28,479.00 and 6,514.08

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Solution

The fourth proportional to 18,985.48, 28,479.00 and 6,514.08 is: 9,771.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.48 : 28,479.00 = 6,514.08 : x
  2. Step 2: Convert to fraction form
    18,985.48/28,479.00 = 6,514.08/x
  3. Step 3: Cross multiply
    18,985.48x = 28,479.00 × 6,514.08
  4. Step 4: Simplify right side
    18,985.48x = 185,514,401.95
  5. Step 5: Solve for x
    x = 185,514,401.95/18,985.48
  6. Step 6: Final answer
    x = 9,771.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.