Home / 13,337.89-18,406.64-7,369.93

Finding the Fourth Proportional to 13,337.89, 18,406.64 and 7,369.93

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Solution

The fourth proportional to 13,337.89, 18,406.64 and 7,369.93 is: 10,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.89 : 18,406.64 = 7,369.93 : x
  2. Step 2: Convert to fraction form
    13,337.89/18,406.64 = 7,369.93/x
  3. Step 3: Cross multiply
    13,337.89x = 18,406.64 × 7,369.93
  4. Step 4: Simplify right side
    13,337.89x = 135,655,689.77
  5. Step 5: Solve for x
    x = 135,655,689.77/13,337.89
  6. Step 6: Final answer
    x = 10,170.70

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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.