Home / 14,159.96-21,237.08-13,457.40

Finding the Fourth Proportional to 14,159.96, 21,237.08 and 13,457.40

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Solution

The fourth proportional to 14,159.96, 21,237.08 and 13,457.40 is: 20,183.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,159.96 : 21,237.08 = 13,457.40 : x
  2. Step 2: Convert to fraction form
    14,159.96/21,237.08 = 13,457.40/x
  3. Step 3: Cross multiply
    14,159.96x = 21,237.08 × 13,457.40
  4. Step 4: Simplify right side
    14,159.96x = 285,795,880.39
  5. Step 5: Solve for x
    x = 285,795,880.39/14,159.96
  6. Step 6: Final answer
    x = 20,183.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.