Home / 14,279.56-19,706.70-7,992.40

Finding the Fourth Proportional to 14,279.56, 19,706.70 and 7,992.40

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Solution

The fourth proportional to 14,279.56, 19,706.70 and 7,992.40 is: 11,030.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.56 : 19,706.70 = 7,992.40 : x
  2. Step 2: Convert to fraction form
    14,279.56/19,706.70 = 7,992.40/x
  3. Step 3: Cross multiply
    14,279.56x = 19,706.70 × 7,992.40
  4. Step 4: Simplify right side
    14,279.56x = 157,503,829.08
  5. Step 5: Solve for x
    x = 157,503,829.08/14,279.56
  6. Step 6: Final answer
    x = 11,030.02

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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.