Home / 12,156.51-18,227.47-5,574.45

Finding the Fourth Proportional to 12,156.51, 18,227.47 and 5,574.45

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Solution

The fourth proportional to 12,156.51, 18,227.47 and 5,574.45 is: 8,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.51 : 18,227.47 = 5,574.45 : x
  2. Step 2: Convert to fraction form
    12,156.51/18,227.47 = 5,574.45/x
  3. Step 3: Cross multiply
    12,156.51x = 18,227.47 × 5,574.45
  4. Step 4: Simplify right side
    12,156.51x = 101,608,015.07
  5. Step 5: Solve for x
    x = 101,608,015.07/12,156.51
  6. Step 6: Final answer
    x = 8,358.32

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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.