Home / 13,803.63-19,048.95-7,515.87

Finding the Fourth Proportional to 13,803.63, 19,048.95 and 7,515.87

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Solution

The fourth proportional to 13,803.63, 19,048.95 and 7,515.87 is: 10,371.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.63 : 19,048.95 = 7,515.87 : x
  2. Step 2: Convert to fraction form
    13,803.63/19,048.95 = 7,515.87/x
  3. Step 3: Cross multiply
    13,803.63x = 19,048.95 × 7,515.87
  4. Step 4: Simplify right side
    13,803.63x = 143,169,431.84
  5. Step 5: Solve for x
    x = 143,169,431.84/13,803.63
  6. Step 6: Final answer
    x = 10,371.87

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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.