Home / 13,556.17-18,707.33-7,587.84

Finding the Fourth Proportional to 13,556.17, 18,707.33 and 7,587.84

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Solution

The fourth proportional to 13,556.17, 18,707.33 and 7,587.84 is: 10,471.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.17 : 18,707.33 = 7,587.84 : x
  2. Step 2: Convert to fraction form
    13,556.17/18,707.33 = 7,587.84/x
  3. Step 3: Cross multiply
    13,556.17x = 18,707.33 × 7,587.84
  4. Step 4: Simplify right side
    13,556.17x = 141,948,226.87
  5. Step 5: Solve for x
    x = 141,948,226.87/13,556.17
  6. Step 6: Final answer
    x = 10,471.12

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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.