Home / 12,547.05-18,822.37-4,111.76

Finding the Fourth Proportional to 12,547.05, 18,822.37 and 4,111.76

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Solution

The fourth proportional to 12,547.05, 18,822.37 and 4,111.76 is: 6,168.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.05 : 18,822.37 = 4,111.76 : x
  2. Step 2: Convert to fraction form
    12,547.05/18,822.37 = 4,111.76/x
  3. Step 3: Cross multiply
    12,547.05x = 18,822.37 × 4,111.76
  4. Step 4: Simplify right side
    12,547.05x = 77,392,963.68
  5. Step 5: Solve for x
    x = 77,392,963.68/12,547.05
  6. Step 6: Final answer
    x = 6,168.22

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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.