Home / 12,087.09-18,113.76-6,528.45

Finding the Fourth Proportional to 12,087.09, 18,113.76 and 6,528.45

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Solution

The fourth proportional to 12,087.09, 18,113.76 and 6,528.45 is: 9,783.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.09 : 18,113.76 = 6,528.45 : x
  2. Step 2: Convert to fraction form
    12,087.09/18,113.76 = 6,528.45/x
  3. Step 3: Cross multiply
    12,087.09x = 18,113.76 × 6,528.45
  4. Step 4: Simplify right side
    12,087.09x = 118,254,776.47
  5. Step 5: Solve for x
    x = 118,254,776.47/12,087.09
  6. Step 6: Final answer
    x = 9,783.56

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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.