Home / 13,940.34-20,910.57-4,712.82

Finding the Fourth Proportional to 13,940.34, 20,910.57 and 4,712.82

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Solution

The fourth proportional to 13,940.34, 20,910.57 and 4,712.82 is: 7,069.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.34 : 20,910.57 = 4,712.82 : x
  2. Step 2: Convert to fraction form
    13,940.34/20,910.57 = 4,712.82/x
  3. Step 3: Cross multiply
    13,940.34x = 20,910.57 × 4,712.82
  4. Step 4: Simplify right side
    13,940.34x = 98,547,752.51
  5. Step 5: Solve for x
    x = 98,547,752.51/13,940.34
  6. Step 6: Final answer
    x = 7,069.25

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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.