Home / 13,466.43-18,580.58-7,721.23

Finding the Fourth Proportional to 13,466.43, 18,580.58 and 7,721.23

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Solution

The fourth proportional to 13,466.43, 18,580.58 and 7,721.23 is: 10,653.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,466.43 : 18,580.58 = 7,721.23 : x
  2. Step 2: Convert to fraction form
    13,466.43/18,580.58 = 7,721.23/x
  3. Step 3: Cross multiply
    13,466.43x = 18,580.58 × 7,721.23
  4. Step 4: Simplify right side
    13,466.43x = 143,464,873.46
  5. Step 5: Solve for x
    x = 143,464,873.46/13,466.43
  6. Step 6: Final answer
    x = 10,653.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.