Home / 10,353.56-14,287.79-5,637.80

Finding the Fourth Proportional to 10,353.56, 14,287.79 and 5,637.80

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Solution

The fourth proportional to 10,353.56, 14,287.79 and 5,637.80 is: 7,780.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,353.56 : 14,287.79 = 5,637.80 : x
  2. Step 2: Convert to fraction form
    10,353.56/14,287.79 = 5,637.80/x
  3. Step 3: Cross multiply
    10,353.56x = 14,287.79 × 5,637.80
  4. Step 4: Simplify right side
    10,353.56x = 80,551,752.28
  5. Step 5: Solve for x
    x = 80,551,752.28/10,353.56
  6. Step 6: Final answer
    x = 7,780.11

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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.