Home / 13,479.57-18,599.61-7,511.07

Finding the Fourth Proportional to 13,479.57, 18,599.61 and 7,511.07

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Solution

The fourth proportional to 13,479.57, 18,599.61 and 7,511.07 is: 10,364.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.57 : 18,599.61 = 7,511.07 : x
  2. Step 2: Convert to fraction form
    13,479.57/18,599.61 = 7,511.07/x
  3. Step 3: Cross multiply
    13,479.57x = 18,599.61 × 7,511.07
  4. Step 4: Simplify right side
    13,479.57x = 139,702,972.68
  5. Step 5: Solve for x
    x = 139,702,972.68/13,479.57
  6. Step 6: Final answer
    x = 10,364.05

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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.