Home / 6,514.98-8,987.88-4,123.80

Finding the Fourth Proportional to 6,514.98, 8,987.88 and 4,123.80

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Solution

The fourth proportional to 6,514.98, 8,987.88 and 4,123.80 is: 5,689.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,514.98 : 8,987.88 = 4,123.80 : x
  2. Step 2: Convert to fraction form
    6,514.98/8,987.88 = 4,123.80/x
  3. Step 3: Cross multiply
    6,514.98x = 8,987.88 × 4,123.80
  4. Step 4: Simplify right side
    6,514.98x = 37,064,219.54
  5. Step 5: Solve for x
    x = 37,064,219.54/6,514.98
  6. Step 6: Final answer
    x = 5,689.08

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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.