Home / 10,087.89-15,131.80-4,806.87

Finding the Fourth Proportional to 10,087.89, 15,131.80 and 4,806.87

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Solution

The fourth proportional to 10,087.89, 15,131.80 and 4,806.87 is: 7,210.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.89 : 15,131.80 = 4,806.87 : x
  2. Step 2: Convert to fraction form
    10,087.89/15,131.80 = 4,806.87/x
  3. Step 3: Cross multiply
    10,087.89x = 15,131.80 × 4,806.87
  4. Step 4: Simplify right side
    10,087.89x = 72,736,595.47
  5. Step 5: Solve for x
    x = 72,736,595.47/10,087.89
  6. Step 6: Final answer
    x = 7,210.29

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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.