Home / 13,686.65-18,898.26-10,710.96

Finding the Fourth Proportional to 13,686.65, 18,898.26 and 10,710.96

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Solution

The fourth proportional to 13,686.65, 18,898.26 and 10,710.96 is: 14,789.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686.65 : 18,898.26 = 10,710.96 : x
  2. Step 2: Convert to fraction form
    13,686.65/18,898.26 = 10,710.96/x
  3. Step 3: Cross multiply
    13,686.65x = 18,898.26 × 10,710.96
  4. Step 4: Simplify right side
    13,686.65x = 202,418,506.93
  5. Step 5: Solve for x
    x = 202,418,506.93/13,686.65
  6. Step 6: Final answer
    x = 14,789.49

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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.