Home / 14,577.81-20,117.45-8,290.18

Finding the Fourth Proportional to 14,577.81, 20,117.45 and 8,290.18

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Solution

The fourth proportional to 14,577.81, 20,117.45 and 8,290.18 is: 11,440.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,577.81 : 20,117.45 = 8,290.18 : x
  2. Step 2: Convert to fraction form
    14,577.81/20,117.45 = 8,290.18/x
  3. Step 3: Cross multiply
    14,577.81x = 20,117.45 × 8,290.18
  4. Step 4: Simplify right side
    14,577.81x = 166,777,327.51
  5. Step 5: Solve for x
    x = 166,777,327.51/14,577.81
  6. Step 6: Final answer
    x = 11,440.50

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Double scale
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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.