Home / 12,113.40-18,150.48-5,087.64

Finding the Fourth Proportional to 12,113.40, 18,150.48 and 5,087.64

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Solution

The fourth proportional to 12,113.40, 18,150.48 and 5,087.64 is: 7,623.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.40 : 18,150.48 = 5,087.64 : x
  2. Step 2: Convert to fraction form
    12,113.40/18,150.48 = 5,087.64/x
  3. Step 3: Cross multiply
    12,113.40x = 18,150.48 × 5,087.64
  4. Step 4: Simplify right side
    12,113.40x = 92,343,108.07
  5. Step 5: Solve for x
    x = 92,343,108.07/12,113.40
  6. Step 6: Final answer
    x = 7,623.22

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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.