Home / 13,918.45-19,185.64-10,547.77

Finding the Fourth Proportional to 13,918.45, 19,185.64 and 10,547.77

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Solution

The fourth proportional to 13,918.45, 19,185.64 and 10,547.77 is: 14,539.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.45 : 19,185.64 = 10,547.77 : x
  2. Step 2: Convert to fraction form
    13,918.45/19,185.64 = 10,547.77/x
  3. Step 3: Cross multiply
    13,918.45x = 19,185.64 × 10,547.77
  4. Step 4: Simplify right side
    13,918.45x = 202,365,718.02
  5. Step 5: Solve for x
    x = 202,365,718.02/13,918.45
  6. Step 6: Final answer
    x = 14,539.39

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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.