Home / 12,298.10-18,447.15-4,903.70

Finding the Fourth Proportional to 12,298.10, 18,447.15 and 4,903.70

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Solution

The fourth proportional to 12,298.10, 18,447.15 and 4,903.70 is: 7,355.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298.10 : 18,447.15 = 4,903.70 : x
  2. Step 2: Convert to fraction form
    12,298.10/18,447.15 = 4,903.70/x
  3. Step 3: Cross multiply
    12,298.10x = 18,447.15 × 4,903.70
  4. Step 4: Simplify right side
    12,298.10x = 90,459,289.46
  5. Step 5: Solve for x
    x = 90,459,289.46/12,298.10
  6. Step 6: Final answer
    x = 7,355.55

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.