Home / 15,465.06-21,362.13-11,858.13

Finding the Fourth Proportional to 15,465.06, 21,362.13 and 11,858.13

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Solution

The fourth proportional to 15,465.06, 21,362.13 and 11,858.13 is: 16,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,465.06 : 21,362.13 = 11,858.13 : x
  2. Step 2: Convert to fraction form
    15,465.06/21,362.13 = 11,858.13/x
  3. Step 3: Cross multiply
    15,465.06x = 21,362.13 × 11,858.13
  4. Step 4: Simplify right side
    15,465.06x = 253,314,914.62
  5. Step 5: Solve for x
    x = 253,314,914.62/15,465.06
  6. Step 6: Final answer
    x = 16,379.82

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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.