Home / 13,877.37-19,156.95-10,689.51

Finding the Fourth Proportional to 13,877.37, 19,156.95 and 10,689.51

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Solution

The fourth proportional to 13,877.37, 19,156.95 and 10,689.51 is: 14,756.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.37 : 19,156.95 = 10,689.51 : x
  2. Step 2: Convert to fraction form
    13,877.37/19,156.95 = 10,689.51/x
  3. Step 3: Cross multiply
    13,877.37x = 19,156.95 × 10,689.51
  4. Step 4: Simplify right side
    13,877.37x = 204,778,408.59
  5. Step 5: Solve for x
    x = 204,778,408.59/13,877.37
  6. Step 6: Final answer
    x = 14,756.28

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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.