Home / 19,036.64-28,554.96-5,187.68

Finding the Fourth Proportional to 19,036.64, 28,554.96 and 5,187.68

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Solution

The fourth proportional to 19,036.64, 28,554.96 and 5,187.68 is: 7,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,036.64 : 28,554.96 = 5,187.68 : x
  2. Step 2: Convert to fraction form
    19,036.64/28,554.96 = 5,187.68/x
  3. Step 3: Cross multiply
    19,036.64x = 28,554.96 × 5,187.68
  4. Step 4: Simplify right side
    19,036.64x = 148,133,994.89
  5. Step 5: Solve for x
    x = 148,133,994.89/19,036.64
  6. Step 6: Final answer
    x = 7,781.52

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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.