Home / 18,498.04-27,688.70-13,216.03

Finding the Fourth Proportional to 18,498.04, 27,688.70 and 13,216.03

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Solution

The fourth proportional to 18,498.04, 27,688.70 and 13,216.03 is: 19,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498.04 : 27,688.70 = 13,216.03 : x
  2. Step 2: Convert to fraction form
    18,498.04/27,688.70 = 13,216.03/x
  3. Step 3: Cross multiply
    18,498.04x = 27,688.70 × 13,216.03
  4. Step 4: Simplify right side
    18,498.04x = 365,934,653.68
  5. Step 5: Solve for x
    x = 365,934,653.68/18,498.04
  6. Step 6: Final answer
    x = 19,782.35

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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.