Home / 12,598.48-18,898.59-4,279.36

Finding the Fourth Proportional to 12,598.48, 18,898.59 and 4,279.36

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Solution

The fourth proportional to 12,598.48, 18,898.59 and 4,279.36 is: 6,419.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,598.48 : 18,898.59 = 4,279.36 : x
  2. Step 2: Convert to fraction form
    12,598.48/18,898.59 = 4,279.36/x
  3. Step 3: Cross multiply
    12,598.48x = 18,898.59 × 4,279.36
  4. Step 4: Simplify right side
    12,598.48x = 80,873,870.10
  5. Step 5: Solve for x
    x = 80,873,870.10/12,598.48
  6. Step 6: Final answer
    x = 6,419.34

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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.