Home / 13,815.99-19,066.19-7,528.77

Finding the Fourth Proportional to 13,815.99, 19,066.19 and 7,528.77

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Solution

The fourth proportional to 13,815.99, 19,066.19 and 7,528.77 is: 10,389.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.99 : 19,066.19 = 7,528.77 : x
  2. Step 2: Convert to fraction form
    13,815.99/19,066.19 = 7,528.77/x
  3. Step 3: Cross multiply
    13,815.99x = 19,066.19 × 7,528.77
  4. Step 4: Simplify right side
    13,815.99x = 143,544,921.64
  5. Step 5: Solve for x
    x = 143,544,921.64/13,815.99
  6. Step 6: Final answer
    x = 10,389.77

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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.