Home / 14,088.60-19,442.70-8,121.47

Finding the Fourth Proportional to 14,088.60, 19,442.70 and 8,121.47

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Solution

The fourth proportional to 14,088.60, 19,442.70 and 8,121.47 is: 11,207.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,088.60 : 19,442.70 = 8,121.47 : x
  2. Step 2: Convert to fraction form
    14,088.60/19,442.70 = 8,121.47/x
  3. Step 3: Cross multiply
    14,088.60x = 19,442.70 × 8,121.47
  4. Step 4: Simplify right side
    14,088.60x = 157,903,207.56
  5. Step 5: Solve for x
    x = 157,903,207.56/14,088.60
  6. Step 6: Final answer
    x = 11,207.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.