Home / 14,443.13-19,931.27-8,069.81

Finding the Fourth Proportional to 14,443.13, 19,931.27 and 8,069.81

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Solution

The fourth proportional to 14,443.13, 19,931.27 and 8,069.81 is: 11,136.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,443.13 : 19,931.27 = 8,069.81 : x
  2. Step 2: Convert to fraction form
    14,443.13/19,931.27 = 8,069.81/x
  3. Step 3: Cross multiply
    14,443.13x = 19,931.27 × 8,069.81
  4. Step 4: Simplify right side
    14,443.13x = 160,841,421.95
  5. Step 5: Solve for x
    x = 160,841,421.95/14,443.13
  6. Step 6: Final answer
    x = 11,136.19

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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.