Home / 14,703.39-20,290.23-7,988.76

Finding the Fourth Proportional to 14,703.39, 20,290.23 and 7,988.76

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Solution

The fourth proportional to 14,703.39, 20,290.23 and 7,988.76 is: 11,024.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,703.39 : 20,290.23 = 7,988.76 : x
  2. Step 2: Convert to fraction form
    14,703.39/20,290.23 = 7,988.76/x
  3. Step 3: Cross multiply
    14,703.39x = 20,290.23 × 7,988.76
  4. Step 4: Simplify right side
    14,703.39x = 162,093,777.81
  5. Step 5: Solve for x
    x = 162,093,777.81/14,703.39
  6. Step 6: Final answer
    x = 11,024.25

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Half scale
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Double scale
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Similar ratio
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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.