Home / 6,513.73-8,988.40-3,681.35

Finding the Fourth Proportional to 6,513.73, 8,988.40 and 3,681.35

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Solution

The fourth proportional to 6,513.73, 8,988.40 and 3,681.35 is: 5,079.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.73 : 8,988.40 = 3,681.35 : x
  2. Step 2: Convert to fraction form
    6,513.73/8,988.40 = 3,681.35/x
  3. Step 3: Cross multiply
    6,513.73x = 8,988.40 × 3,681.35
  4. Step 4: Simplify right side
    6,513.73x = 33,089,446.34
  5. Step 5: Solve for x
    x = 33,089,446.34/6,513.73
  6. Step 6: Final answer
    x = 5,079.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.