Home / 13,448.93-18,560.99-7,783.58

Finding the Fourth Proportional to 13,448.93, 18,560.99 and 7,783.58

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Solution

The fourth proportional to 13,448.93, 18,560.99 and 7,783.58 is: 10,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.93 : 18,560.99 = 7,783.58 : x
  2. Step 2: Convert to fraction form
    13,448.93/18,560.99 = 7,783.58/x
  3. Step 3: Cross multiply
    13,448.93x = 18,560.99 × 7,783.58
  4. Step 4: Simplify right side
    13,448.93x = 144,471,016.41
  5. Step 5: Solve for x
    x = 144,471,016.41/13,448.93
  6. Step 6: Final answer
    x = 10,742.20

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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.