Home / 19,860.77-27,407.88-10,908.72

Finding the Fourth Proportional to 19,860.77, 27,407.88 and 10,908.72

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Solution

The fourth proportional to 19,860.77, 27,407.88 and 10,908.72 is: 15,054.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.77 : 27,407.88 = 10,908.72 : x
  2. Step 2: Convert to fraction form
    19,860.77/27,407.88 = 10,908.72/x
  3. Step 3: Cross multiply
    19,860.77x = 27,407.88 × 10,908.72
  4. Step 4: Simplify right side
    19,860.77x = 298,984,888.71
  5. Step 5: Solve for x
    x = 298,984,888.71/19,860.77
  6. Step 6: Final answer
    x = 15,054.04

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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.