Home / 9,537.79-14,312.28-3,990.68

Finding the Fourth Proportional to 9,537.79, 14,312.28 and 3,990.68

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Solution

The fourth proportional to 9,537.79, 14,312.28 and 3,990.68 is: 5,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,537.79 : 14,312.28 = 3,990.68 : x
  2. Step 2: Convert to fraction form
    9,537.79/14,312.28 = 3,990.68/x
  3. Step 3: Cross multiply
    9,537.79x = 14,312.28 × 3,990.68
  4. Step 4: Simplify right side
    9,537.79x = 57,115,729.55
  5. Step 5: Solve for x
    x = 57,115,729.55/9,537.79
  6. Step 6: Final answer
    x = 5,988.36

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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.