Home / 12,383.69-18,570.87-4,985.62

Finding the Fourth Proportional to 12,383.69, 18,570.87 and 4,985.62

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Solution

The fourth proportional to 12,383.69, 18,570.87 and 4,985.62 is: 7,476.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.69 : 18,570.87 = 4,985.62 : x
  2. Step 2: Convert to fraction form
    12,383.69/18,570.87 = 4,985.62/x
  3. Step 3: Cross multiply
    12,383.69x = 18,570.87 × 4,985.62
  4. Step 4: Simplify right side
    12,383.69x = 92,587,254.46
  5. Step 5: Solve for x
    x = 92,587,254.46/12,383.69
  6. Step 6: Final answer
    x = 7,476.55

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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.