Home / 19,166.29-28,747.16-5,127.40

Finding the Fourth Proportional to 19,166.29, 28,747.16 and 5,127.40

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Solution

The fourth proportional to 19,166.29, 28,747.16 and 5,127.40 is: 7,690.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,166.29 : 28,747.16 = 5,127.40 : x
  2. Step 2: Convert to fraction form
    19,166.29/28,747.16 = 5,127.40/x
  3. Step 3: Cross multiply
    19,166.29x = 28,747.16 × 5,127.40
  4. Step 4: Simplify right side
    19,166.29x = 147,398,188.18
  5. Step 5: Solve for x
    x = 147,398,188.18/19,166.29
  6. Step 6: Final answer
    x = 7,690.49

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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.