Home / 13,735.37-18,970.40-9,251.35

Finding the Fourth Proportional to 13,735.37, 18,970.40 and 9,251.35

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Solution

The fourth proportional to 13,735.37, 18,970.40 and 9,251.35 is: 12,777.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735.37 : 18,970.40 = 9,251.35 : x
  2. Step 2: Convert to fraction form
    13,735.37/18,970.40 = 9,251.35/x
  3. Step 3: Cross multiply
    13,735.37x = 18,970.40 × 9,251.35
  4. Step 4: Simplify right side
    13,735.37x = 175,501,810.04
  5. Step 5: Solve for x
    x = 175,501,810.04/13,735.37
  6. Step 6: Final answer
    x = 12,777.36

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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.