Home / 9,156.48-12,635.80-5,177.46

Finding the Fourth Proportional to 9,156.48, 12,635.80 and 5,177.46

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Solution

The fourth proportional to 9,156.48, 12,635.80 and 5,177.46 is: 7,144.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.48 : 12,635.80 = 5,177.46 : x
  2. Step 2: Convert to fraction form
    9,156.48/12,635.80 = 5,177.46/x
  3. Step 3: Cross multiply
    9,156.48x = 12,635.80 × 5,177.46
  4. Step 4: Simplify right side
    9,156.48x = 65,421,349.07
  5. Step 5: Solve for x
    x = 65,421,349.07/9,156.48
  6. Step 6: Final answer
    x = 7,144.81

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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.