Home / 13,088.10-18,059.13-7,784.22

Finding the Fourth Proportional to 13,088.10, 18,059.13 and 7,784.22

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Solution

The fourth proportional to 13,088.10, 18,059.13 and 7,784.22 is: 10,740.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,088.10 : 18,059.13 = 7,784.22 : x
  2. Step 2: Convert to fraction form
    13,088.10/18,059.13 = 7,784.22/x
  3. Step 3: Cross multiply
    13,088.10x = 18,059.13 × 7,784.22
  4. Step 4: Simplify right side
    13,088.10x = 140,576,240.93
  5. Step 5: Solve for x
    x = 140,576,240.93/13,088.10
  6. Step 6: Final answer
    x = 10,740.77

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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.