Home / 13,300.93-18,355.40-7,332.81

Finding the Fourth Proportional to 13,300.93, 18,355.40 and 7,332.81

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Solution

The fourth proportional to 13,300.93, 18,355.40 and 7,332.81 is: 10,119.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.93 : 18,355.40 = 7,332.81 : x
  2. Step 2: Convert to fraction form
    13,300.93/18,355.40 = 7,332.81/x
  3. Step 3: Cross multiply
    13,300.93x = 18,355.40 × 7,332.81
  4. Step 4: Simplify right side
    13,300.93x = 134,596,582.68
  5. Step 5: Solve for x
    x = 134,596,582.68/13,300.93
  6. Step 6: Final answer
    x = 10,119.34

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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.