Home / 12,031.65-18,035.36-5,015.55

Finding the Fourth Proportional to 12,031.65, 18,035.36 and 5,015.55

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Solution

The fourth proportional to 12,031.65, 18,035.36 and 5,015.55 is: 7,518.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,031.65 : 18,035.36 = 5,015.55 : x
  2. Step 2: Convert to fraction form
    12,031.65/18,035.36 = 5,015.55/x
  3. Step 3: Cross multiply
    12,031.65x = 18,035.36 × 5,015.55
  4. Step 4: Simplify right side
    12,031.65x = 90,457,233.57
  5. Step 5: Solve for x
    x = 90,457,233.57/12,031.65
  6. Step 6: Final answer
    x = 7,518.27

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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.