Home / 14,423.13-19,903.86-8,135.46

Finding the Fourth Proportional to 14,423.13, 19,903.86 and 8,135.46

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Solution

The fourth proportional to 14,423.13, 19,903.86 and 8,135.46 is: 11,226.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,423.13 : 19,903.86 = 8,135.46 : x
  2. Step 2: Convert to fraction form
    14,423.13/19,903.86 = 8,135.46/x
  3. Step 3: Cross multiply
    14,423.13x = 19,903.86 × 8,135.46
  4. Step 4: Simplify right side
    14,423.13x = 161,927,056.88
  5. Step 5: Solve for x
    x = 161,927,056.88/14,423.13
  6. Step 6: Final answer
    x = 11,226.90

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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.