Home / 10,353.49-14,287.91-5,637.78

Finding the Fourth Proportional to 10,353.49, 14,287.91 and 5,637.78

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Solution

The fourth proportional to 10,353.49, 14,287.91 and 5,637.78 is: 7,780.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,353.49 : 14,287.91 = 5,637.78 : x
  2. Step 2: Convert to fraction form
    10,353.49/14,287.91 = 5,637.78/x
  3. Step 3: Cross multiply
    10,353.49x = 14,287.91 × 5,637.78
  4. Step 4: Simplify right side
    10,353.49x = 80,552,093.24
  5. Step 5: Solve for x
    x = 80,552,093.24/10,353.49
  6. Step 6: Final answer
    x = 7,780.19

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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.