Home / 10,927.74-15,053.94-8,688.90

Finding the Fourth Proportional to 10,927.74, 15,053.94 and 8,688.90

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Solution

The fourth proportional to 10,927.74, 15,053.94 and 8,688.90 is: 11,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,927.74 : 15,053.94 = 8,688.90 : x
  2. Step 2: Convert to fraction form
    10,927.74/15,053.94 = 8,688.90/x
  3. Step 3: Cross multiply
    10,927.74x = 15,053.94 × 8,688.90
  4. Step 4: Simplify right side
    10,927.74x = 130,802,179.27
  5. Step 5: Solve for x
    x = 130,802,179.27/10,927.74
  6. Step 6: Final answer
    x = 11,969.74

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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.