Home / 19,218.52-26,543.40-12,919.96

Finding the Fourth Proportional to 19,218.52, 26,543.40 and 12,919.96

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Solution

The fourth proportional to 19,218.52, 26,543.40 and 12,919.96 is: 17,844.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.52 : 26,543.40 = 12,919.96 : x
  2. Step 2: Convert to fraction form
    19,218.52/26,543.40 = 12,919.96/x
  3. Step 3: Cross multiply
    19,218.52x = 26,543.40 × 12,919.96
  4. Step 4: Simplify right side
    19,218.52x = 342,939,666.26
  5. Step 5: Solve for x
    x = 342,939,666.26/19,218.52
  6. Step 6: Final answer
    x = 17,844.23

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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.