Home / 13,746.88-18,970.59-7,459.30

Finding the Fourth Proportional to 13,746.88, 18,970.59 and 7,459.30

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Solution

The fourth proportional to 13,746.88, 18,970.59 and 7,459.30 is: 10,293.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.88 : 18,970.59 = 7,459.30 : x
  2. Step 2: Convert to fraction form
    13,746.88/18,970.59 = 7,459.30/x
  3. Step 3: Cross multiply
    13,746.88x = 18,970.59 × 7,459.30
  4. Step 4: Simplify right side
    13,746.88x = 141,507,321.99
  5. Step 5: Solve for x
    x = 141,507,321.99/13,746.88
  6. Step 6: Final answer
    x = 10,293.78

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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.