Home / 19,114.18-28,679.40-9,260.80

Finding the Fourth Proportional to 19,114.18, 28,679.40 and 9,260.80

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Solution

The fourth proportional to 19,114.18, 28,679.40 and 9,260.80 is: 13,895.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,114.18 : 28,679.40 = 9,260.80 : x
  2. Step 2: Convert to fraction form
    19,114.18/28,679.40 = 9,260.80/x
  3. Step 3: Cross multiply
    19,114.18x = 28,679.40 × 9,260.80
  4. Step 4: Simplify right side
    19,114.18x = 265,594,187.52
  5. Step 5: Solve for x
    x = 265,594,187.52/19,114.18
  6. Step 6: Final answer
    x = 13,895.14

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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.