Home / 13,301.04-18,356.73-9,938.02

Finding the Fourth Proportional to 13,301.04, 18,356.73 and 9,938.02

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Solution

The fourth proportional to 13,301.04, 18,356.73 and 9,938.02 is: 13,715.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301.04 : 18,356.73 = 9,938.02 : x
  2. Step 2: Convert to fraction form
    13,301.04/18,356.73 = 9,938.02/x
  3. Step 3: Cross multiply
    13,301.04x = 18,356.73 × 9,938.02
  4. Step 4: Simplify right side
    13,301.04x = 182,429,549.87
  5. Step 5: Solve for x
    x = 182,429,549.87/13,301.04
  6. Step 6: Final answer
    x = 13,715.44

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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.