Home / 13,357.51-18,421.09-11,468.45

Finding the Fourth Proportional to 13,357.51, 18,421.09 and 11,468.45

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Solution

The fourth proportional to 13,357.51, 18,421.09 and 11,468.45 is: 15,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.51 : 18,421.09 = 11,468.45 : x
  2. Step 2: Convert to fraction form
    13,357.51/18,421.09 = 11,468.45/x
  3. Step 3: Cross multiply
    13,357.51x = 18,421.09 × 11,468.45
  4. Step 4: Simplify right side
    13,357.51x = 211,261,366.99
  5. Step 5: Solve for x
    x = 211,261,366.99/13,357.51
  6. Step 6: Final answer
    x = 15,815.93

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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.