Home / 11,402.94-15,738.68-6,688.74

Finding the Fourth Proportional to 11,402.94, 15,738.68 and 6,688.74

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Solution

The fourth proportional to 11,402.94, 15,738.68 and 6,688.74 is: 9,232.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,402.94 : 15,738.68 = 6,688.74 : x
  2. Step 2: Convert to fraction form
    11,402.94/15,738.68 = 6,688.74/x
  3. Step 3: Cross multiply
    11,402.94x = 15,738.68 × 6,688.74
  4. Step 4: Simplify right side
    11,402.94x = 105,271,905.02
  5. Step 5: Solve for x
    x = 105,271,905.02/11,402.94
  6. Step 6: Final answer
    x = 9,232.00

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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.