Home / 14,219.19-19,622.48-7,931.56

Finding the Fourth Proportional to 14,219.19, 19,622.48 and 7,931.56

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Solution

The fourth proportional to 14,219.19, 19,622.48 and 7,931.56 is: 10,945.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.19 : 19,622.48 = 7,931.56 : x
  2. Step 2: Convert to fraction form
    14,219.19/19,622.48 = 7,931.56/x
  3. Step 3: Cross multiply
    14,219.19x = 19,622.48 × 7,931.56
  4. Step 4: Simplify right side
    14,219.19x = 155,636,877.47
  5. Step 5: Solve for x
    x = 155,636,877.47/14,219.19
  6. Step 6: Final answer
    x = 10,945.55

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Half scale
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Double scale
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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.