Home / 10,436.81-15,660.35-4,889.19

Finding the Fourth Proportional to 10,436.81, 15,660.35 and 4,889.19

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Solution

The fourth proportional to 10,436.81, 15,660.35 and 4,889.19 is: 7,336.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,436.81 : 15,660.35 = 4,889.19 : x
  2. Step 2: Convert to fraction form
    10,436.81/15,660.35 = 4,889.19/x
  3. Step 3: Cross multiply
    10,436.81x = 15,660.35 × 4,889.19
  4. Step 4: Simplify right side
    10,436.81x = 76,566,402.17
  5. Step 5: Solve for x
    x = 76,566,402.17/10,436.81
  6. Step 6: Final answer
    x = 7,336.19

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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.