Home / 12,503.19-17,210.55-11,322.21

Finding the Fourth Proportional to 12,503.19, 17,210.55 and 11,322.21

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Solution

The fourth proportional to 12,503.19, 17,210.55 and 11,322.21 is: 15,584.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503.19 : 17,210.55 = 11,322.21 : x
  2. Step 2: Convert to fraction form
    12,503.19/17,210.55 = 11,322.21/x
  3. Step 3: Cross multiply
    12,503.19x = 17,210.55 × 11,322.21
  4. Step 4: Simplify right side
    12,503.19x = 194,861,461.32
  5. Step 5: Solve for x
    x = 194,861,461.32/12,503.19
  6. Step 6: Final answer
    x = 15,584.94

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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.