Home / 14,803.10-20,427.69-8,430.56

Finding the Fourth Proportional to 14,803.10, 20,427.69 and 8,430.56

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Solution

The fourth proportional to 14,803.10, 20,427.69 and 8,430.56 is: 11,633.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,803.10 : 20,427.69 = 8,430.56 : x
  2. Step 2: Convert to fraction form
    14,803.10/20,427.69 = 8,430.56/x
  3. Step 3: Cross multiply
    14,803.10x = 20,427.69 × 8,430.56
  4. Step 4: Simplify right side
    14,803.10x = 172,216,866.21
  5. Step 5: Solve for x
    x = 172,216,866.21/14,803.10
  6. Step 6: Final answer
    x = 11,633.84

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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.