Home / 19,686.51-27,166.84-10,734.19

Finding the Fourth Proportional to 19,686.51, 27,166.84 and 10,734.19

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Solution

The fourth proportional to 19,686.51, 27,166.84 and 10,734.19 is: 14,812.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,686.51 : 27,166.84 = 10,734.19 : x
  2. Step 2: Convert to fraction form
    19,686.51/27,166.84 = 10,734.19/x
  3. Step 3: Cross multiply
    19,686.51x = 27,166.84 × 10,734.19
  4. Step 4: Simplify right side
    19,686.51x = 291,613,927.51
  5. Step 5: Solve for x
    x = 291,613,927.51/19,686.51
  6. Step 6: Final answer
    x = 14,812.88

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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.