Home / 14,000.55-19,319.83-7,712.92

Finding the Fourth Proportional to 14,000.55, 19,319.83 and 7,712.92

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Solution

The fourth proportional to 14,000.55, 19,319.83 and 7,712.92 is: 10,643.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.55 : 19,319.83 = 7,712.92 : x
  2. Step 2: Convert to fraction form
    14,000.55/19,319.83 = 7,712.92/x
  3. Step 3: Cross multiply
    14,000.55x = 19,319.83 × 7,712.92
  4. Step 4: Simplify right side
    14,000.55x = 149,012,303.20
  5. Step 5: Solve for x
    x = 149,012,303.20/14,000.55
  6. Step 6: Final answer
    x = 10,643.32

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Half scale
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Double scale
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Similar ratio
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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.