Home / 13,329.60-18,389.01-7,663.04

Finding the Fourth Proportional to 13,329.60, 18,389.01 and 7,663.04

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Solution

The fourth proportional to 13,329.60, 18,389.01 and 7,663.04 is: 10,571.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.60 : 18,389.01 = 7,663.04 : x
  2. Step 2: Convert to fraction form
    13,329.60/18,389.01 = 7,663.04/x
  3. Step 3: Cross multiply
    13,329.60x = 18,389.01 × 7,663.04
  4. Step 4: Simplify right side
    13,329.60x = 140,915,719.19
  5. Step 5: Solve for x
    x = 140,915,719.19/13,329.60
  6. Step 6: Final answer
    x = 10,571.64

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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.