Home / 12,153.51-18,237.44-5,133.07

Finding the Fourth Proportional to 12,153.51, 18,237.44 and 5,133.07

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Solution

The fourth proportional to 12,153.51, 18,237.44 and 5,133.07 is: 7,702.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.51 : 18,237.44 = 5,133.07 : x
  2. Step 2: Convert to fraction form
    12,153.51/18,237.44 = 5,133.07/x
  3. Step 3: Cross multiply
    12,153.51x = 18,237.44 × 5,133.07
  4. Step 4: Simplify right side
    12,153.51x = 93,614,056.14
  5. Step 5: Solve for x
    x = 93,614,056.14/12,153.51
  6. Step 6: Final answer
    x = 7,702.64

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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.