Home / 19,869.51-29,758.91-9,488.55

Finding the Fourth Proportional to 19,869.51, 29,758.91 and 9,488.55

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Solution

The fourth proportional to 19,869.51, 29,758.91 and 9,488.55 is: 14,211.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.51 : 29,758.91 = 9,488.55 : x
  2. Step 2: Convert to fraction form
    19,869.51/29,758.91 = 9,488.55/x
  3. Step 3: Cross multiply
    19,869.51x = 29,758.91 × 9,488.55
  4. Step 4: Simplify right side
    19,869.51x = 282,368,858.04
  5. Step 5: Solve for x
    x = 282,368,858.04/19,869.51
  6. Step 6: Final answer
    x = 14,211.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.