Home / 9,128.36-12,603.30-5,989.88

Finding the Fourth Proportional to 9,128.36, 12,603.30 and 5,989.88

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Solution

The fourth proportional to 9,128.36, 12,603.30 and 5,989.88 is: 8,270.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.36 : 12,603.30 = 5,989.88 : x
  2. Step 2: Convert to fraction form
    9,128.36/12,603.30 = 5,989.88/x
  3. Step 3: Cross multiply
    9,128.36x = 12,603.30 × 5,989.88
  4. Step 4: Simplify right side
    9,128.36x = 75,492,254.60
  5. Step 5: Solve for x
    x = 75,492,254.60/9,128.36
  6. Step 6: Final answer
    x = 8,270.08

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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.