Home / 13,449.71-18,559.30-7,783.33

Finding the Fourth Proportional to 13,449.71, 18,559.30 and 7,783.33

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Solution

The fourth proportional to 13,449.71, 18,559.30 and 7,783.33 is: 10,740.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.71 : 18,559.30 = 7,783.33 : x
  2. Step 2: Convert to fraction form
    13,449.71/18,559.30 = 7,783.33/x
  3. Step 3: Cross multiply
    13,449.71x = 18,559.30 × 7,783.33
  4. Step 4: Simplify right side
    13,449.71x = 144,453,156.47
  5. Step 5: Solve for x
    x = 144,453,156.47/13,449.71
  6. Step 6: Final answer
    x = 10,740.24

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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.