Home / 13,236.63-19,812.33-6,987.72

Finding the Fourth Proportional to 13,236.63, 19,812.33 and 6,987.72

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Solution

The fourth proportional to 13,236.63, 19,812.33 and 6,987.72 is: 10,459.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.63 : 19,812.33 = 6,987.72 : x
  2. Step 2: Convert to fraction form
    13,236.63/19,812.33 = 6,987.72/x
  3. Step 3: Cross multiply
    13,236.63x = 19,812.33 × 6,987.72
  4. Step 4: Simplify right side
    13,236.63x = 138,443,014.59
  5. Step 5: Solve for x
    x = 138,443,014.59/13,236.63
  6. Step 6: Final answer
    x = 10,459.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.