Home / 9,412.96-12,989.28-5,875.96

Finding the Fourth Proportional to 9,412.96, 12,989.28 and 5,875.96

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Solution

The fourth proportional to 9,412.96, 12,989.28 and 5,875.96 is: 8,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,412.96 : 12,989.28 = 5,875.96 : x
  2. Step 2: Convert to fraction form
    9,412.96/12,989.28 = 5,875.96/x
  3. Step 3: Cross multiply
    9,412.96x = 12,989.28 × 5,875.96
  4. Step 4: Simplify right side
    9,412.96x = 76,324,489.71
  5. Step 5: Solve for x
    x = 76,324,489.71/9,412.96
  6. Step 6: Final answer
    x = 8,108.45

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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.