Home / 14,703.06-20,290.34-7,988.72

Finding the Fourth Proportional to 14,703.06, 20,290.34 and 7,988.72

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Solution

The fourth proportional to 14,703.06, 20,290.34 and 7,988.72 is: 11,024.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,703.06 : 20,290.34 = 7,988.72 : x
  2. Step 2: Convert to fraction form
    14,703.06/20,290.34 = 7,988.72/x
  3. Step 3: Cross multiply
    14,703.06x = 20,290.34 × 7,988.72
  4. Step 4: Simplify right side
    14,703.06x = 162,093,844.96
  5. Step 5: Solve for x
    x = 162,093,844.96/14,703.06
  6. Step 6: Final answer
    x = 11,024.50

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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.