Home / 13,255.81-19,877.36-7,710.64

Finding the Fourth Proportional to 13,255.81, 19,877.36 and 7,710.64

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Solution

The fourth proportional to 13,255.81, 19,877.36 and 7,710.64 is: 11,562.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.81 : 19,877.36 = 7,710.64 : x
  2. Step 2: Convert to fraction form
    13,255.81/19,877.36 = 7,710.64/x
  3. Step 3: Cross multiply
    13,255.81x = 19,877.36 × 7,710.64
  4. Step 4: Simplify right side
    13,255.81x = 153,267,167.11
  5. Step 5: Solve for x
    x = 153,267,167.11/13,255.81
  6. Step 6: Final answer
    x = 11,562.26

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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.