Home / 19,556.14-26,980.40-12,845.40

Finding the Fourth Proportional to 19,556.14, 26,980.40 and 12,845.40

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Solution

The fourth proportional to 19,556.14, 26,980.40 and 12,845.40 is: 17,722.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,556.14 : 26,980.40 = 12,845.40 : x
  2. Step 2: Convert to fraction form
    19,556.14/26,980.40 = 12,845.40/x
  3. Step 3: Cross multiply
    19,556.14x = 26,980.40 × 12,845.40
  4. Step 4: Simplify right side
    19,556.14x = 346,574,030.16
  5. Step 5: Solve for x
    x = 346,574,030.16/19,556.14
  6. Step 6: Final answer
    x = 17,722.01

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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.