Home / 15,074.58-20,783.80-10,772.81

Finding the Fourth Proportional to 15,074.58, 20,783.80 and 10,772.81

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Solution

The fourth proportional to 15,074.58, 20,783.80 and 10,772.81 is: 14,852.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.58 : 20,783.80 = 10,772.81 : x
  2. Step 2: Convert to fraction form
    15,074.58/20,783.80 = 10,772.81/x
  3. Step 3: Cross multiply
    15,074.58x = 20,783.80 × 10,772.81
  4. Step 4: Simplify right side
    15,074.58x = 223,900,010.26
  5. Step 5: Solve for x
    x = 223,900,010.26/15,074.58
  6. Step 6: Final answer
    x = 14,852.82

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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.