Home / 19,218.53-26,510.67-12,132.65

Finding the Fourth Proportional to 19,218.53, 26,510.67 and 12,132.65

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Solution

The fourth proportional to 19,218.53, 26,510.67 and 12,132.65 is: 16,736.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.53 : 26,510.67 = 12,132.65 : x
  2. Step 2: Convert to fraction form
    19,218.53/26,510.67 = 12,132.65/x
  3. Step 3: Cross multiply
    19,218.53x = 26,510.67 × 12,132.65
  4. Step 4: Simplify right side
    19,218.53x = 321,644,547.82
  5. Step 5: Solve for x
    x = 321,644,547.82/19,218.53
  6. Step 6: Final answer
    x = 16,736.17

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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.