Home / 11,970.16-17,939.60-7,465.36

Finding the Fourth Proportional to 11,970.16, 17,939.60 and 7,465.36

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Solution

The fourth proportional to 11,970.16, 17,939.60 and 7,465.36 is: 11,188.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970.16 : 17,939.60 = 7,465.36 : x
  2. Step 2: Convert to fraction form
    11,970.16/17,939.60 = 7,465.36/x
  3. Step 3: Cross multiply
    11,970.16x = 17,939.60 × 7,465.36
  4. Step 4: Simplify right side
    11,970.16x = 133,925,572.26
  5. Step 5: Solve for x
    x = 133,925,572.26/11,970.16
  6. Step 6: Final answer
    x = 11,188.29

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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.