Home / 19,187.06-28,780.63-7,492.07

Finding the Fourth Proportional to 19,187.06, 28,780.63 and 7,492.07

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Solution

The fourth proportional to 19,187.06, 28,780.63 and 7,492.07 is: 11,238.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187.06 : 28,780.63 = 7,492.07 : x
  2. Step 2: Convert to fraction form
    19,187.06/28,780.63 = 7,492.07/x
  3. Step 3: Cross multiply
    19,187.06x = 28,780.63 × 7,492.07
  4. Step 4: Simplify right side
    19,187.06x = 215,626,547.83
  5. Step 5: Solve for x
    x = 215,626,547.83/19,187.06
  6. Step 6: Final answer
    x = 11,238.13

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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.