Home / 8,304.40-11,459.64-5,160.52

Finding the Fourth Proportional to 8,304.40, 11,459.64 and 5,160.52

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Solution

The fourth proportional to 8,304.40, 11,459.64 and 5,160.52 is: 7,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,304.40 : 11,459.64 = 5,160.52 : x
  2. Step 2: Convert to fraction form
    8,304.40/11,459.64 = 5,160.52/x
  3. Step 3: Cross multiply
    8,304.40x = 11,459.64 × 5,160.52
  4. Step 4: Simplify right side
    8,304.40x = 59,137,701.41
  5. Step 5: Solve for x
    x = 59,137,701.41/8,304.40
  6. Step 6: Final answer
    x = 7,121.25

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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.