Home / 14,001.30-19,358.37-13,381.65

Finding the Fourth Proportional to 14,001.30, 19,358.37 and 13,381.65

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Solution

The fourth proportional to 14,001.30, 19,358.37 and 13,381.65 is: 18,501.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.30 : 19,358.37 = 13,381.65 : x
  2. Step 2: Convert to fraction form
    14,001.30/19,358.37 = 13,381.65/x
  3. Step 3: Cross multiply
    14,001.30x = 19,358.37 × 13,381.65
  4. Step 4: Simplify right side
    14,001.30x = 259,046,931.91
  5. Step 5: Solve for x
    x = 259,046,931.91/14,001.30
  6. Step 6: Final answer
    x = 18,501.63

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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.