Home / 9,132.70-12,603.08-5,153.80

Finding the Fourth Proportional to 9,132.70, 12,603.08 and 5,153.80

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Solution

The fourth proportional to 9,132.70, 12,603.08 and 5,153.80 is: 7,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,132.70 : 12,603.08 = 5,153.80 : x
  2. Step 2: Convert to fraction form
    9,132.70/12,603.08 = 5,153.80/x
  3. Step 3: Cross multiply
    9,132.70x = 12,603.08 × 5,153.80
  4. Step 4: Simplify right side
    9,132.70x = 64,953,753.70
  5. Step 5: Solve for x
    x = 64,953,753.70/9,132.70
  6. Step 6: Final answer
    x = 7,112.22

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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.