Home / 19,313.79-26,653.10-10,816.31

Finding the Fourth Proportional to 19,313.79, 26,653.10 and 10,816.31

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Solution

The fourth proportional to 19,313.79, 26,653.10 and 10,816.31 is: 14,926.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,313.79 : 26,653.10 = 10,816.31 : x
  2. Step 2: Convert to fraction form
    19,313.79/26,653.10 = 10,816.31/x
  3. Step 3: Cross multiply
    19,313.79x = 26,653.10 × 10,816.31
  4. Step 4: Simplify right side
    19,313.79x = 288,288,004.71
  5. Step 5: Solve for x
    x = 288,288,004.71/19,313.79
  6. Step 6: Final answer
    x = 14,926.54

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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.