Home / 15,378.26-23,071.58-4,990.01

Finding the Fourth Proportional to 15,378.26, 23,071.58 and 4,990.01

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Solution

The fourth proportional to 15,378.26, 23,071.58 and 4,990.01 is: 7,486.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,378.26 : 23,071.58 = 4,990.01 : x
  2. Step 2: Convert to fraction form
    15,378.26/23,071.58 = 4,990.01/x
  3. Step 3: Cross multiply
    15,378.26x = 23,071.58 × 4,990.01
  4. Step 4: Simplify right side
    15,378.26x = 115,127,389.97
  5. Step 5: Solve for x
    x = 115,127,389.97/15,378.26
  6. Step 6: Final answer
    x = 7,486.37

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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.