Home / 13,345.61-18,415.50-7,376.47

Finding the Fourth Proportional to 13,345.61, 18,415.50 and 7,376.47

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Solution

The fourth proportional to 13,345.61, 18,415.50 and 7,376.47 is: 10,178.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.61 : 18,415.50 = 7,376.47 : x
  2. Step 2: Convert to fraction form
    13,345.61/18,415.50 = 7,376.47/x
  3. Step 3: Cross multiply
    13,345.61x = 18,415.50 × 7,376.47
  4. Step 4: Simplify right side
    13,345.61x = 135,841,351.08
  5. Step 5: Solve for x
    x = 135,841,351.08/13,345.61
  6. Step 6: Final answer
    x = 10,178.73

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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.