Home / 9,130.48-12,610.96-6,489.34

Finding the Fourth Proportional to 9,130.48, 12,610.96 and 6,489.34

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Solution

The fourth proportional to 9,130.48, 12,610.96 and 6,489.34 is: 8,963.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.48 : 12,610.96 = 6,489.34 : x
  2. Step 2: Convert to fraction form
    9,130.48/12,610.96 = 6,489.34/x
  3. Step 3: Cross multiply
    9,130.48x = 12,610.96 × 6,489.34
  4. Step 4: Simplify right side
    9,130.48x = 81,836,807.17
  5. Step 5: Solve for x
    x = 81,836,807.17/9,130.48
  6. Step 6: Final answer
    x = 8,963.03

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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.