Home / 10,660.48-15,990.75-4,088.68

Finding the Fourth Proportional to 10,660.48, 15,990.75 and 4,088.68

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Solution

The fourth proportional to 10,660.48, 15,990.75 and 4,088.68 is: 6,133.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.48 : 15,990.75 = 4,088.68 : x
  2. Step 2: Convert to fraction form
    10,660.48/15,990.75 = 4,088.68/x
  3. Step 3: Cross multiply
    10,660.48x = 15,990.75 × 4,088.68
  4. Step 4: Simplify right side
    10,660.48x = 65,381,059.71
  5. Step 5: Solve for x
    x = 65,381,059.71/10,660.48
  6. Step 6: Final answer
    x = 6,133.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.