Home / 10,345.14-15,505.56-4,786.74

Finding the Fourth Proportional to 10,345.14, 15,505.56 and 4,786.74

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Solution

The fourth proportional to 10,345.14, 15,505.56 and 4,786.74 is: 7,174.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.14 : 15,505.56 = 4,786.74 : x
  2. Step 2: Convert to fraction form
    10,345.14/15,505.56 = 4,786.74/x
  3. Step 3: Cross multiply
    10,345.14x = 15,505.56 × 4,786.74
  4. Step 4: Simplify right side
    10,345.14x = 74,221,060.34
  5. Step 5: Solve for x
    x = 74,221,060.34/10,345.14
  6. Step 6: Final answer
    x = 7,174.49

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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.