Home / 10,991.76-15,210.36-9,598.56

Finding the Fourth Proportional to 10,991.76, 15,210.36 and 9,598.56

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Solution

The fourth proportional to 10,991.76, 15,210.36 and 9,598.56 is: 13,282.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.76 : 15,210.36 = 9,598.56 : x
  2. Step 2: Convert to fraction form
    10,991.76/15,210.36 = 9,598.56/x
  3. Step 3: Cross multiply
    10,991.76x = 15,210.36 × 9,598.56
  4. Step 4: Simplify right side
    10,991.76x = 145,997,553.08
  5. Step 5: Solve for x
    x = 145,997,553.08/10,991.76
  6. Step 6: Final answer
    x = 13,282.45

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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.