Home / 10,927.71-15,072.53-7,153.77

Finding the Fourth Proportional to 10,927.71, 15,072.53 and 7,153.77

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Solution

The fourth proportional to 10,927.71, 15,072.53 and 7,153.77 is: 9,867.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,927.71 : 15,072.53 = 7,153.77 : x
  2. Step 2: Convert to fraction form
    10,927.71/15,072.53 = 7,153.77/x
  3. Step 3: Cross multiply
    10,927.71x = 15,072.53 × 7,153.77
  4. Step 4: Simplify right side
    10,927.71x = 107,825,389.15
  5. Step 5: Solve for x
    x = 107,825,389.15/10,927.71
  6. Step 6: Final answer
    x = 9,867.15

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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.