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Finding the Fourth Proportional to 7,545, 10,411.23 and 4,187.49

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Solution

The fourth proportional to 7,545, 10,411.23 and 4,187.49 is: 5,778.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,545 : 10,411.23 = 4,187.49 : x
  2. Step 2: Convert to fraction form
    7,545/10,411.23 = 4,187.49/x
  3. Step 3: Cross multiply
    7,545x = 10,411.23 × 4,187.49
  4. Step 4: Simplify right side
    7,545x = 43,596,921.51
  5. Step 5: Solve for x
    x = 43,596,921.51/7,545
  6. Step 6: Final answer
    x = 5,778.25

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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.