Home / 13,329.02-18,372.48-10,131.68

Finding the Fourth Proportional to 13,329.02, 18,372.48 and 10,131.68

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Solution

The fourth proportional to 13,329.02, 18,372.48 and 10,131.68 is: 13,965.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.02 : 18,372.48 = 10,131.68 : x
  2. Step 2: Convert to fraction form
    13,329.02/18,372.48 = 10,131.68/x
  3. Step 3: Cross multiply
    13,329.02x = 18,372.48 × 10,131.68
  4. Step 4: Simplify right side
    13,329.02x = 186,144,088.17
  5. Step 5: Solve for x
    x = 186,144,088.17/13,329.02
  6. Step 6: Final answer
    x = 13,965.32

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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.