Home / 13,465.13-18,581.38-7,496.68

Finding the Fourth Proportional to 13,465.13, 18,581.38 and 7,496.68

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Solution

The fourth proportional to 13,465.13, 18,581.38 and 7,496.68 is: 10,345.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.13 : 18,581.38 = 7,496.68 : x
  2. Step 2: Convert to fraction form
    13,465.13/18,581.38 = 7,496.68/x
  3. Step 3: Cross multiply
    13,465.13x = 18,581.38 × 7,496.68
  4. Step 4: Simplify right side
    13,465.13x = 139,298,659.82
  5. Step 5: Solve for x
    x = 139,298,659.82/13,465.13
  6. Step 6: Final answer
    x = 10,345.14

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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.