Home / 13,062.04-18,022.80-7,758.64

Finding the Fourth Proportional to 13,062.04, 18,022.80 and 7,758.64

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Solution

The fourth proportional to 13,062.04, 18,022.80 and 7,758.64 is: 10,705.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,062.04 : 18,022.80 = 7,758.64 : x
  2. Step 2: Convert to fraction form
    13,062.04/18,022.80 = 7,758.64/x
  3. Step 3: Cross multiply
    13,062.04x = 18,022.80 × 7,758.64
  4. Step 4: Simplify right side
    13,062.04x = 139,832,416.99
  5. Step 5: Solve for x
    x = 139,832,416.99/13,062.04
  6. Step 6: Final answer
    x = 10,705.25

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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.