Home / 13,626.18-18,802.04-7,656.69

Finding the Fourth Proportional to 13,626.18, 18,802.04 and 7,656.69

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Solution

The fourth proportional to 13,626.18, 18,802.04 and 7,656.69 is: 10,565.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.18 : 18,802.04 = 7,656.69 : x
  2. Step 2: Convert to fraction form
    13,626.18/18,802.04 = 7,656.69/x
  3. Step 3: Cross multiply
    13,626.18x = 18,802.04 × 7,656.69
  4. Step 4: Simplify right side
    13,626.18x = 143,961,353.36
  5. Step 5: Solve for x
    x = 143,961,353.36/13,626.18
  6. Step 6: Final answer
    x = 10,565.06

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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.