Home / 19,266.36-26,579.70-12,980.76

Finding the Fourth Proportional to 19,266.36, 26,579.70 and 12,980.76

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Solution

The fourth proportional to 19,266.36, 26,579.70 and 12,980.76 is: 17,908.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,266.36 : 26,579.70 = 12,980.76 : x
  2. Step 2: Convert to fraction form
    19,266.36/26,579.70 = 12,980.76/x
  3. Step 3: Cross multiply
    19,266.36x = 26,579.70 × 12,980.76
  4. Step 4: Simplify right side
    19,266.36x = 345,024,706.57
  5. Step 5: Solve for x
    x = 345,024,706.57/19,266.36
  6. Step 6: Final answer
    x = 17,908.14

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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.