Home / 9,989.21-14,987.34-6,287.28

Finding the Fourth Proportional to 9,989.21, 14,987.34 and 6,287.28

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Solution

The fourth proportional to 9,989.21, 14,987.34 and 6,287.28 is: 9,433.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.21 : 14,987.34 = 6,287.28 : x
  2. Step 2: Convert to fraction form
    9,989.21/14,987.34 = 6,287.28/x
  3. Step 3: Cross multiply
    9,989.21x = 14,987.34 × 6,287.28
  4. Step 4: Simplify right side
    9,989.21x = 94,229,603.04
  5. Step 5: Solve for x
    x = 94,229,603.04/9,989.21
  6. Step 6: Final answer
    x = 9,433.14

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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.