Home / 12,338.70-18,511.29-4,547.58

Finding the Fourth Proportional to 12,338.70, 18,511.29 and 4,547.58

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Solution

The fourth proportional to 12,338.70, 18,511.29 and 4,547.58 is: 6,822.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,338.70 : 18,511.29 = 4,547.58 : x
  2. Step 2: Convert to fraction form
    12,338.70/18,511.29 = 4,547.58/x
  3. Step 3: Cross multiply
    12,338.70x = 18,511.29 × 4,547.58
  4. Step 4: Simplify right side
    12,338.70x = 84,181,572.18
  5. Step 5: Solve for x
    x = 84,181,572.18/12,338.70
  6. Step 6: Final answer
    x = 6,822.56

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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.