Home / 19,860.34-27,407.55-10,908.67

Finding the Fourth Proportional to 19,860.34, 27,407.55 and 10,908.67

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Solution

The fourth proportional to 19,860.34, 27,407.55 and 10,908.67 is: 15,054.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.34 : 27,407.55 = 10,908.67 : x
  2. Step 2: Convert to fraction form
    19,860.34/27,407.55 = 10,908.67/x
  3. Step 3: Cross multiply
    19,860.34x = 27,407.55 × 10,908.67
  4. Step 4: Simplify right side
    19,860.34x = 298,979,918.46
  5. Step 5: Solve for x
    x = 298,979,918.46/19,860.34
  6. Step 6: Final answer
    x = 15,054.12

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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.