Home / 13,637.51-18,819.59-7,669.18

Finding the Fourth Proportional to 13,637.51, 18,819.59 and 7,669.18

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Solution

The fourth proportional to 13,637.51, 18,819.59 and 7,669.18 is: 10,583.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.51 : 18,819.59 = 7,669.18 : x
  2. Step 2: Convert to fraction form
    13,637.51/18,819.59 = 7,669.18/x
  3. Step 3: Cross multiply
    13,637.51x = 18,819.59 × 7,669.18
  4. Step 4: Simplify right side
    13,637.51x = 144,330,851.55
  5. Step 5: Solve for x
    x = 144,330,851.55/13,637.51
  6. Step 6: Final answer
    x = 10,583.37

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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.