Home / 13,623.39-18,801.48-7,656.51

Finding the Fourth Proportional to 13,623.39, 18,801.48 and 7,656.51

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Solution

The fourth proportional to 13,623.39, 18,801.48 and 7,656.51 is: 10,566.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.39 : 18,801.48 = 7,656.51 : x
  2. Step 2: Convert to fraction form
    13,623.39/18,801.48 = 7,656.51/x
  3. Step 3: Cross multiply
    13,623.39x = 18,801.48 × 7,656.51
  4. Step 4: Simplify right side
    13,623.39x = 143,953,719.63
  5. Step 5: Solve for x
    x = 143,953,719.63/13,623.39
  6. Step 6: Final answer
    x = 10,566.66

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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.