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Finding the Fourth Proportional to 11,360.53, 15,684.87 and 7,387.48

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Solution

The fourth proportional to 11,360.53, 15,684.87 and 7,387.48 is: 10,199.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,360.53 : 15,684.87 = 7,387.48 : x
  2. Step 2: Convert to fraction form
    11,360.53/15,684.87 = 7,387.48/x
  3. Step 3: Cross multiply
    11,360.53x = 15,684.87 × 7,387.48
  4. Step 4: Simplify right side
    11,360.53x = 115,871,710.74
  5. Step 5: Solve for x
    x = 115,871,710.74/11,360.53
  6. Step 6: Final answer
    x = 10,199.50

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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.