Home / 7,931.51-11,898.36-2,666.93

Finding the Fourth Proportional to 7,931.51, 11,898.36 and 2,666.93

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Solution

The fourth proportional to 7,931.51, 11,898.36 and 2,666.93 is: 4,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.51 : 11,898.36 = 2,666.93 : x
  2. Step 2: Convert to fraction form
    7,931.51/11,898.36 = 2,666.93/x
  3. Step 3: Cross multiply
    7,931.51x = 11,898.36 × 2,666.93
  4. Step 4: Simplify right side
    7,931.51x = 31,732,093.23
  5. Step 5: Solve for x
    x = 31,732,093.23/7,931.51
  6. Step 6: Final answer
    x = 4,000.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.