Home / 10,503.47-15,750.60-3,108.51

Finding the Fourth Proportional to 10,503.47, 15,750.60 and 3,108.51

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Solution

The fourth proportional to 10,503.47, 15,750.60 and 3,108.51 is: 4,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,503.47 : 15,750.60 = 3,108.51 : x
  2. Step 2: Convert to fraction form
    10,503.47/15,750.60 = 3,108.51/x
  3. Step 3: Cross multiply
    10,503.47x = 15,750.60 × 3,108.51
  4. Step 4: Simplify right side
    10,503.47x = 48,960,897.61
  5. Step 5: Solve for x
    x = 48,960,897.61/10,503.47
  6. Step 6: Final answer
    x = 4,661.40

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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.