Home / 19,239.76-28,875.84-7,561.18

Finding the Fourth Proportional to 19,239.76, 28,875.84 and 7,561.18

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Solution

The fourth proportional to 19,239.76, 28,875.84 and 7,561.18 is: 11,348.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,239.76 : 28,875.84 = 7,561.18 : x
  2. Step 2: Convert to fraction form
    19,239.76/28,875.84 = 7,561.18/x
  3. Step 3: Cross multiply
    19,239.76x = 28,875.84 × 7,561.18
  4. Step 4: Simplify right side
    19,239.76x = 218,335,423.89
  5. Step 5: Solve for x
    x = 218,335,423.89/19,239.76
  6. Step 6: Final answer
    x = 11,348.14

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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.