Home / 18,911.81-26,098.40-10,528.31

Finding the Fourth Proportional to 18,911.81, 26,098.40 and 10,528.31

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Solution

The fourth proportional to 18,911.81, 26,098.40 and 10,528.31 is: 14,529.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911.81 : 26,098.40 = 10,528.31 : x
  2. Step 2: Convert to fraction form
    18,911.81/26,098.40 = 10,528.31/x
  3. Step 3: Cross multiply
    18,911.81x = 26,098.40 × 10,528.31
  4. Step 4: Simplify right side
    18,911.81x = 274,772,137.27
  5. Step 5: Solve for x
    x = 274,772,137.27/18,911.81
  6. Step 6: Final answer
    x = 14,529.13

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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.