Home / 13,985.52-19,300.40-7,698.28

Finding the Fourth Proportional to 13,985.52, 19,300.40 and 7,698.28

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Solution

The fourth proportional to 13,985.52, 19,300.40 and 7,698.28 is: 10,623.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.52 : 19,300.40 = 7,698.28 : x
  2. Step 2: Convert to fraction form
    13,985.52/19,300.40 = 7,698.28/x
  3. Step 3: Cross multiply
    13,985.52x = 19,300.40 × 7,698.28
  4. Step 4: Simplify right side
    13,985.52x = 148,579,883.31
  5. Step 5: Solve for x
    x = 148,579,883.31/13,985.52
  6. Step 6: Final answer
    x = 10,623.84

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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.