Home / 13,428.30-18,529.04-7,459.96

Finding the Fourth Proportional to 13,428.30, 18,529.04 and 7,459.96

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Solution

The fourth proportional to 13,428.30, 18,529.04 and 7,459.96 is: 10,293.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428.30 : 18,529.04 = 7,459.96 : x
  2. Step 2: Convert to fraction form
    13,428.30/18,529.04 = 7,459.96/x
  3. Step 3: Cross multiply
    13,428.30x = 18,529.04 × 7,459.96
  4. Step 4: Simplify right side
    13,428.30x = 138,225,897.24
  5. Step 5: Solve for x
    x = 138,225,897.24/13,428.30
  6. Step 6: Final answer
    x = 10,293.63

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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.