Home / 7,157.52-9,848.40-6,984.72

Finding the Fourth Proportional to 7,157.52, 9,848.40 and 6,984.72

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Solution

The fourth proportional to 7,157.52, 9,848.40 and 6,984.72 is: 9,610.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.52 : 9,848.40 = 6,984.72 : x
  2. Step 2: Convert to fraction form
    7,157.52/9,848.40 = 6,984.72/x
  3. Step 3: Cross multiply
    7,157.52x = 9,848.40 × 6,984.72
  4. Step 4: Simplify right side
    7,157.52x = 68,788,316.45
  5. Step 5: Solve for x
    x = 68,788,316.45/7,157.52
  6. Step 6: Final answer
    x = 9,610.64

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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.