Home / 10,555.74-15,825.38-5,288.04

Finding the Fourth Proportional to 10,555.74, 15,825.38 and 5,288.04

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Solution

The fourth proportional to 10,555.74, 15,825.38 and 5,288.04 is: 7,927.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.74 : 15,825.38 = 5,288.04 : x
  2. Step 2: Convert to fraction form
    10,555.74/15,825.38 = 5,288.04/x
  3. Step 3: Cross multiply
    10,555.74x = 15,825.38 × 5,288.04
  4. Step 4: Simplify right side
    10,555.74x = 83,685,242.46
  5. Step 5: Solve for x
    x = 83,685,242.46/10,555.74
  6. Step 6: Final answer
    x = 7,927.94

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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.