Home / 14,000.28-19,320.38-7,712.66

Finding the Fourth Proportional to 14,000.28, 19,320.38 and 7,712.66

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Solution

The fourth proportional to 14,000.28, 19,320.38 and 7,712.66 is: 10,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.28 : 19,320.38 = 7,712.66 : x
  2. Step 2: Convert to fraction form
    14,000.28/19,320.38 = 7,712.66/x
  3. Step 3: Cross multiply
    14,000.28x = 19,320.38 × 7,712.66
  4. Step 4: Simplify right side
    14,000.28x = 149,011,522.01
  5. Step 5: Solve for x
    x = 149,011,522.01/14,000.28
  6. Step 6: Final answer
    x = 10,643.47

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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.