Home / 12,289.01-18,419.09-5,701.32

Finding the Fourth Proportional to 12,289.01, 18,419.09 and 5,701.32

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Solution

The fourth proportional to 12,289.01, 18,419.09 and 5,701.32 is: 8,545.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289.01 : 18,419.09 = 5,701.32 : x
  2. Step 2: Convert to fraction form
    12,289.01/18,419.09 = 5,701.32/x
  3. Step 3: Cross multiply
    12,289.01x = 18,419.09 × 5,701.32
  4. Step 4: Simplify right side
    12,289.01x = 105,013,097.69
  5. Step 5: Solve for x
    x = 105,013,097.69/12,289.01
  6. Step 6: Final answer
    x = 8,545.29

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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.