Home / 19,125.51-28,691.90-7,437.81

Finding the Fourth Proportional to 19,125.51, 28,691.90 and 7,437.81

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Solution

The fourth proportional to 19,125.51, 28,691.90 and 7,437.81 is: 11,158.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,125.51 : 28,691.90 = 7,437.81 : x
  2. Step 2: Convert to fraction form
    19,125.51/28,691.90 = 7,437.81/x
  3. Step 3: Cross multiply
    19,125.51x = 28,691.90 × 7,437.81
  4. Step 4: Simplify right side
    19,125.51x = 213,404,900.74
  5. Step 5: Solve for x
    x = 213,404,900.74/19,125.51
  6. Step 6: Final answer
    x = 11,158.13

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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.