Home / 18,681.49-28,033.27-7,587.33

Finding the Fourth Proportional to 18,681.49, 28,033.27 and 7,587.33

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Solution

The fourth proportional to 18,681.49, 28,033.27 and 7,587.33 is: 11,385.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.49 : 28,033.27 = 7,587.33 : x
  2. Step 2: Convert to fraction form
    18,681.49/28,033.27 = 7,587.33/x
  3. Step 3: Cross multiply
    18,681.49x = 28,033.27 × 7,587.33
  4. Step 4: Simplify right side
    18,681.49x = 212,697,670.47
  5. Step 5: Solve for x
    x = 212,697,670.47/18,681.49
  6. Step 6: Final answer
    x = 11,385.48

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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.