Home / 15,299.81-21,101.83-11,066.75

Finding the Fourth Proportional to 15,299.81, 21,101.83 and 11,066.75

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Solution

The fourth proportional to 15,299.81, 21,101.83 and 11,066.75 is: 15,263.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,299.81 : 21,101.83 = 11,066.75 : x
  2. Step 2: Convert to fraction form
    15,299.81/21,101.83 = 11,066.75/x
  3. Step 3: Cross multiply
    15,299.81x = 21,101.83 × 11,066.75
  4. Step 4: Simplify right side
    15,299.81x = 233,528,543.98
  5. Step 5: Solve for x
    x = 233,528,543.98/15,299.81
  6. Step 6: Final answer
    x = 15,263.50

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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.