Home / 14,820.88-20,457.96-8,535.76

Finding the Fourth Proportional to 14,820.88, 20,457.96 and 8,535.76

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Solution

The fourth proportional to 14,820.88, 20,457.96 and 8,535.76 is: 11,782.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,820.88 : 20,457.96 = 8,535.76 : x
  2. Step 2: Convert to fraction form
    14,820.88/20,457.96 = 8,535.76/x
  3. Step 3: Cross multiply
    14,820.88x = 20,457.96 × 8,535.76
  4. Step 4: Simplify right side
    14,820.88x = 174,624,236.65
  5. Step 5: Solve for x
    x = 174,624,236.65/14,820.88
  6. Step 6: Final answer
    x = 11,782.31

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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.