Home / 19,516.56-26,907.44-12,440.40

Finding the Fourth Proportional to 19,516.56, 26,907.44 and 12,440.40

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Solution

The fourth proportional to 19,516.56, 26,907.44 and 12,440.40 is: 17,151.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,516.56 : 26,907.44 = 12,440.40 : x
  2. Step 2: Convert to fraction form
    19,516.56/26,907.44 = 12,440.40/x
  3. Step 3: Cross multiply
    19,516.56x = 26,907.44 × 12,440.40
  4. Step 4: Simplify right side
    19,516.56x = 334,739,254.37
  5. Step 5: Solve for x
    x = 334,739,254.37/19,516.56
  6. Step 6: Final answer
    x = 17,151.55

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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.