Home / 14,412.63-19,905.83-9,688.71

Finding the Fourth Proportional to 14,412.63, 19,905.83 and 9,688.71

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Solution

The fourth proportional to 14,412.63, 19,905.83 and 9,688.71 is: 13,381.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,412.63 : 19,905.83 = 9,688.71 : x
  2. Step 2: Convert to fraction form
    14,412.63/19,905.83 = 9,688.71/x
  3. Step 3: Cross multiply
    14,412.63x = 19,905.83 × 9,688.71
  4. Step 4: Simplify right side
    14,412.63x = 192,861,814.18
  5. Step 5: Solve for x
    x = 192,861,814.18/14,412.63
  6. Step 6: Final answer
    x = 13,381.44

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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.