Home / 13,757.63-18,985.59-7,470

Finding the Fourth Proportional to 13,757.63, 18,985.59 and 7,470

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Solution

The fourth proportional to 13,757.63, 18,985.59 and 7,470 is: 10,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.63 : 18,985.59 = 7,470 : x
  2. Step 2: Convert to fraction form
    13,757.63/18,985.59 = 7,470/x
  3. Step 3: Cross multiply
    13,757.63x = 18,985.59 × 7,470
  4. Step 4: Simplify right side
    13,757.63x = 141,822,357.30
  5. Step 5: Solve for x
    x = 141,822,357.30/13,757.63
  6. Step 6: Final answer
    x = 10,308.64

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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.