Home / 13,009.68-19,516.95-5,219.10

Finding the Fourth Proportional to 13,009.68, 19,516.95 and 5,219.10

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Solution

The fourth proportional to 13,009.68, 19,516.95 and 5,219.10 is: 7,829.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.68 : 19,516.95 = 5,219.10 : x
  2. Step 2: Convert to fraction form
    13,009.68/19,516.95 = 5,219.10/x
  3. Step 3: Cross multiply
    13,009.68x = 19,516.95 × 5,219.10
  4. Step 4: Simplify right side
    13,009.68x = 101,860,913.75
  5. Step 5: Solve for x
    x = 101,860,913.75/13,009.68
  6. Step 6: Final answer
    x = 7,829.62

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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.