Home / 19,912.04-27,478.28-10,959.35

Finding the Fourth Proportional to 19,912.04, 27,478.28 and 10,959.35

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Solution

The fourth proportional to 19,912.04, 27,478.28 and 10,959.35 is: 15,123.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.04 : 27,478.28 = 10,959.35 : x
  2. Step 2: Convert to fraction form
    19,912.04/27,478.28 = 10,959.35/x
  3. Step 3: Cross multiply
    19,912.04x = 27,478.28 × 10,959.35
  4. Step 4: Simplify right side
    19,912.04x = 301,144,101.82
  5. Step 5: Solve for x
    x = 301,144,101.82/19,912.04
  6. Step 6: Final answer
    x = 15,123.72

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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.