Home / 19,868.96-27,428.28-11,802.08

Finding the Fourth Proportional to 19,868.96, 27,428.28 and 11,802.08

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Solution

The fourth proportional to 19,868.96, 27,428.28 and 11,802.08 is: 16,292.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.96 : 27,428.28 = 11,802.08 : x
  2. Step 2: Convert to fraction form
    19,868.96/27,428.28 = 11,802.08/x
  3. Step 3: Cross multiply
    19,868.96x = 27,428.28 × 11,802.08
  4. Step 4: Simplify right side
    19,868.96x = 323,710,754.82
  5. Step 5: Solve for x
    x = 323,710,754.82/19,868.96
  6. Step 6: Final answer
    x = 16,292.28

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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.