Home / 14,120.81-19,506.98-11,284.46

Finding the Fourth Proportional to 14,120.81, 19,506.98 and 11,284.46

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Solution

The fourth proportional to 14,120.81, 19,506.98 and 11,284.46 is: 15,588.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.81 : 19,506.98 = 11,284.46 : x
  2. Step 2: Convert to fraction form
    14,120.81/19,506.98 = 11,284.46/x
  3. Step 3: Cross multiply
    14,120.81x = 19,506.98 × 11,284.46
  4. Step 4: Simplify right side
    14,120.81x = 220,125,581.57
  5. Step 5: Solve for x
    x = 220,125,581.57/14,120.81
  6. Step 6: Final answer
    x = 15,588.74

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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.