Home / 13,240.24-18,271.74-7,272.52

Finding the Fourth Proportional to 13,240.24, 18,271.74 and 7,272.52

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Solution

The fourth proportional to 13,240.24, 18,271.74 and 7,272.52 is: 10,036.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.24 : 18,271.74 = 7,272.52 : x
  2. Step 2: Convert to fraction form
    13,240.24/18,271.74 = 7,272.52/x
  3. Step 3: Cross multiply
    13,240.24x = 18,271.74 × 7,272.52
  4. Step 4: Simplify right side
    13,240.24x = 132,881,594.58
  5. Step 5: Solve for x
    x = 132,881,594.58/13,240.24
  6. Step 6: Final answer
    x = 10,036.19

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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.