Home / 13,478.82-18,599.57-7,510.37

Finding the Fourth Proportional to 13,478.82, 18,599.57 and 7,510.37

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Solution

The fourth proportional to 13,478.82, 18,599.57 and 7,510.37 is: 10,363.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.82 : 18,599.57 = 7,510.37 : x
  2. Step 2: Convert to fraction form
    13,478.82/18,599.57 = 7,510.37/x
  3. Step 3: Cross multiply
    13,478.82x = 18,599.57 × 7,510.37
  4. Step 4: Simplify right side
    13,478.82x = 139,689,521.99
  5. Step 5: Solve for x
    x = 139,689,521.99/13,478.82
  6. Step 6: Final answer
    x = 10,363.63

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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.