Home / 19,658.79-27,131.40-11,700.93

Finding the Fourth Proportional to 19,658.79, 27,131.40 and 11,700.93

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Solution

The fourth proportional to 19,658.79, 27,131.40 and 11,700.93 is: 16,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,658.79 : 27,131.40 = 11,700.93 : x
  2. Step 2: Convert to fraction form
    19,658.79/27,131.40 = 11,700.93/x
  3. Step 3: Cross multiply
    19,658.79x = 27,131.40 × 11,700.93
  4. Step 4: Simplify right side
    19,658.79x = 317,462,612.20
  5. Step 5: Solve for x
    x = 317,462,612.20/19,658.79
  6. Step 6: Final answer
    x = 16,148.63

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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.