Home / 19,118.19-28,666.26-7,417.74

Finding the Fourth Proportional to 19,118.19, 28,666.26 and 7,417.74

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Solution

The fourth proportional to 19,118.19, 28,666.26 and 7,417.74 is: 11,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.19 : 28,666.26 = 7,417.74 : x
  2. Step 2: Convert to fraction form
    19,118.19/28,666.26 = 7,417.74/x
  3. Step 3: Cross multiply
    19,118.19x = 28,666.26 × 7,417.74
  4. Step 4: Simplify right side
    19,118.19x = 212,638,863.45
  5. Step 5: Solve for x
    x = 212,638,863.45/19,118.19
  6. Step 6: Final answer
    x = 11,122.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.