Home / 13,916.53-19,205.76-7,864.68

Finding the Fourth Proportional to 13,916.53, 19,205.76 and 7,864.68

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Solution

The fourth proportional to 13,916.53, 19,205.76 and 7,864.68 is: 10,853.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.53 : 19,205.76 = 7,864.68 : x
  2. Step 2: Convert to fraction form
    13,916.53/19,205.76 = 7,864.68/x
  3. Step 3: Cross multiply
    13,916.53x = 19,205.76 × 7,864.68
  4. Step 4: Simplify right side
    13,916.53x = 151,047,258.07
  5. Step 5: Solve for x
    x = 151,047,258.07/13,916.53
  6. Step 6: Final answer
    x = 10,853.80

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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.