Home / 13,345.61-18,416.22-7,376.92

Finding the Fourth Proportional to 13,345.61, 18,416.22 and 7,376.92

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Solution

The fourth proportional to 13,345.61, 18,416.22 and 7,376.92 is: 10,179.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.61 : 18,416.22 = 7,376.92 : x
  2. Step 2: Convert to fraction form
    13,345.61/18,416.22 = 7,376.92/x
  3. Step 3: Cross multiply
    13,345.61x = 18,416.22 × 7,376.92
  4. Step 4: Simplify right side
    13,345.61x = 135,854,981.64
  5. Step 5: Solve for x
    x = 135,854,981.64/13,345.61
  6. Step 6: Final answer
    x = 10,179.75

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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.