Home / 19,185.10-26,475.89-10,687.79

Finding the Fourth Proportional to 19,185.10, 26,475.89 and 10,687.79

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Solution

The fourth proportional to 19,185.10, 26,475.89 and 10,687.79 is: 14,749.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.10 : 26,475.89 = 10,687.79 : x
  2. Step 2: Convert to fraction form
    19,185.10/26,475.89 = 10,687.79/x
  3. Step 3: Cross multiply
    19,185.10x = 26,475.89 × 10,687.79
  4. Step 4: Simplify right side
    19,185.10x = 282,968,752.38
  5. Step 5: Solve for x
    x = 282,968,752.38/19,185.10
  6. Step 6: Final answer
    x = 14,749.40

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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.