Home / 10,087.47-15,134.49-4,242.51

Finding the Fourth Proportional to 10,087.47, 15,134.49 and 4,242.51

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Solution

The fourth proportional to 10,087.47, 15,134.49 and 4,242.51 is: 6,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.47 : 15,134.49 = 4,242.51 : x
  2. Step 2: Convert to fraction form
    10,087.47/15,134.49 = 4,242.51/x
  3. Step 3: Cross multiply
    10,087.47x = 15,134.49 × 4,242.51
  4. Step 4: Simplify right side
    10,087.47x = 64,208,225.17
  5. Step 5: Solve for x
    x = 64,208,225.17/10,087.47
  6. Step 6: Final answer
    x = 6,365.15

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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.