Home / 14,386.21-19,858.37-10,639.50

Finding the Fourth Proportional to 14,386.21, 19,858.37 and 10,639.50

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Solution

The fourth proportional to 14,386.21, 19,858.37 and 10,639.50 is: 14,686.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,386.21 : 19,858.37 = 10,639.50 : x
  2. Step 2: Convert to fraction form
    14,386.21/19,858.37 = 10,639.50/x
  3. Step 3: Cross multiply
    14,386.21x = 19,858.37 × 10,639.50
  4. Step 4: Simplify right side
    14,386.21x = 211,283,111.65
  5. Step 5: Solve for x
    x = 211,283,111.65/14,386.21
  6. Step 6: Final answer
    x = 14,686.51

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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.