Home / 13,807.61-19,065.74-11,255.77

Finding the Fourth Proportional to 13,807.61, 19,065.74 and 11,255.77

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Solution

The fourth proportional to 13,807.61, 19,065.74 and 11,255.77 is: 15,542.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.61 : 19,065.74 = 11,255.77 : x
  2. Step 2: Convert to fraction form
    13,807.61/19,065.74 = 11,255.77/x
  3. Step 3: Cross multiply
    13,807.61x = 19,065.74 × 11,255.77
  4. Step 4: Simplify right side
    13,807.61x = 214,599,432.71
  5. Step 5: Solve for x
    x = 214,599,432.71/13,807.61
  6. Step 6: Final answer
    x = 15,542.11

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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.