Home / 13,260.95-19,888.61-3,898.42

Finding the Fourth Proportional to 13,260.95, 19,888.61 and 3,898.42

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Solution

The fourth proportional to 13,260.95, 19,888.61 and 3,898.42 is: 5,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.95 : 19,888.61 = 3,898.42 : x
  2. Step 2: Convert to fraction form
    13,260.95/19,888.61 = 3,898.42/x
  3. Step 3: Cross multiply
    13,260.95x = 19,888.61 × 3,898.42
  4. Step 4: Simplify right side
    13,260.95x = 77,534,055.55
  5. Step 5: Solve for x
    x = 77,534,055.55/13,260.95
  6. Step 6: Final answer
    x = 5,846.80

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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.