Home / 13,875.58-20,803.65-11,698.30

Finding the Fourth Proportional to 13,875.58, 20,803.65 and 11,698.30

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Solution

The fourth proportional to 13,875.58, 20,803.65 and 11,698.30 is: 17,539.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.58 : 20,803.65 = 11,698.30 : x
  2. Step 2: Convert to fraction form
    13,875.58/20,803.65 = 11,698.30/x
  3. Step 3: Cross multiply
    13,875.58x = 20,803.65 × 11,698.30
  4. Step 4: Simplify right side
    13,875.58x = 243,367,338.80
  5. Step 5: Solve for x
    x = 243,367,338.80/13,875.58
  6. Step 6: Final answer
    x = 17,539.26

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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.