Home / 10,492.79-15,738.66-3,918.45

Finding the Fourth Proportional to 10,492.79, 15,738.66 and 3,918.45

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Solution

The fourth proportional to 10,492.79, 15,738.66 and 3,918.45 is: 5,877.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,492.79 : 15,738.66 = 3,918.45 : x
  2. Step 2: Convert to fraction form
    10,492.79/15,738.66 = 3,918.45/x
  3. Step 3: Cross multiply
    10,492.79x = 15,738.66 × 3,918.45
  4. Step 4: Simplify right side
    10,492.79x = 61,671,152.28
  5. Step 5: Solve for x
    x = 61,671,152.28/10,492.79
  6. Step 6: Final answer
    x = 5,877.48

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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.