Home / 13,444.93-18,556.67-7,781.51

Finding the Fourth Proportional to 13,444.93, 18,556.67 and 7,781.51

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Solution

The fourth proportional to 13,444.93, 18,556.67 and 7,781.51 is: 10,740.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.93 : 18,556.67 = 7,781.51 : x
  2. Step 2: Convert to fraction form
    13,444.93/18,556.67 = 7,781.51/x
  3. Step 3: Cross multiply
    13,444.93x = 18,556.67 × 7,781.51
  4. Step 4: Simplify right side
    13,444.93x = 144,398,904.94
  5. Step 5: Solve for x
    x = 144,398,904.94/13,444.93
  6. Step 6: Final answer
    x = 10,740.03

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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.