Home / 19,117.54-28,665.38-7,417.10

Finding the Fourth Proportional to 19,117.54, 28,665.38 and 7,417.10

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Solution

The fourth proportional to 19,117.54, 28,665.38 and 7,417.10 is: 11,121.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117.54 : 28,665.38 = 7,417.10 : x
  2. Step 2: Convert to fraction form
    19,117.54/28,665.38 = 7,417.10/x
  3. Step 3: Cross multiply
    19,117.54x = 28,665.38 × 7,417.10
  4. Step 4: Simplify right side
    19,117.54x = 212,613,990.00
  5. Step 5: Solve for x
    x = 212,613,990.00/19,117.54
  6. Step 6: Final answer
    x = 11,121.41

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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.