Home / 12,489.93-17,145.81-10,718.46

Finding the Fourth Proportional to 12,489.93, 17,145.81 and 10,718.46

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Solution

The fourth proportional to 12,489.93, 17,145.81 and 10,718.46 is: 14,713.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489.93 : 17,145.81 = 10,718.46 : x
  2. Step 2: Convert to fraction form
    12,489.93/17,145.81 = 10,718.46/x
  3. Step 3: Cross multiply
    12,489.93x = 17,145.81 × 10,718.46
  4. Step 4: Simplify right side
    12,489.93x = 183,776,678.65
  5. Step 5: Solve for x
    x = 183,776,678.65/12,489.93
  6. Step 6: Final answer
    x = 14,713.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.