Home / 9,987.44-14,979.74-6,278.31

Finding the Fourth Proportional to 9,987.44, 14,979.74 and 6,278.31

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Solution

The fourth proportional to 9,987.44, 14,979.74 and 6,278.31 is: 9,416.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.44 : 14,979.74 = 6,278.31 : x
  2. Step 2: Convert to fraction form
    9,987.44/14,979.74 = 6,278.31/x
  3. Step 3: Cross multiply
    9,987.44x = 14,979.74 × 6,278.31
  4. Step 4: Simplify right side
    9,987.44x = 94,047,420.05
  5. Step 5: Solve for x
    x = 94,047,420.05/9,987.44
  6. Step 6: Final answer
    x = 9,416.57

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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.