Home / 9,153.51-12,631.86-5,174.64

Finding the Fourth Proportional to 9,153.51, 12,631.86 and 5,174.64

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Solution

The fourth proportional to 9,153.51, 12,631.86 and 5,174.64 is: 7,141.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.51 : 12,631.86 = 5,174.64 : x
  2. Step 2: Convert to fraction form
    9,153.51/12,631.86 = 5,174.64/x
  3. Step 3: Cross multiply
    9,153.51x = 12,631.86 × 5,174.64
  4. Step 4: Simplify right side
    9,153.51x = 65,365,328.03
  5. Step 5: Solve for x
    x = 65,365,328.03/9,153.51
  6. Step 6: Final answer
    x = 7,141.01

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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.