Home / 10,353.45-14,287.95-5,637.81

Finding the Fourth Proportional to 10,353.45, 14,287.95 and 5,637.81

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Solution

The fourth proportional to 10,353.45, 14,287.95 and 5,637.81 is: 7,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,353.45 : 14,287.95 = 5,637.81 : x
  2. Step 2: Convert to fraction form
    10,353.45/14,287.95 = 5,637.81/x
  3. Step 3: Cross multiply
    10,353.45x = 14,287.95 × 5,637.81
  4. Step 4: Simplify right side
    10,353.45x = 80,552,747.39
  5. Step 5: Solve for x
    x = 80,552,747.39/10,353.45
  6. Step 6: Final answer
    x = 7,780.28

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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.