Home / 10,860.56-14,988.89-6,143.93

Finding the Fourth Proportional to 10,860.56, 14,988.89 and 6,143.93

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Solution

The fourth proportional to 10,860.56, 14,988.89 and 6,143.93 is: 8,479.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.56 : 14,988.89 = 6,143.93 : x
  2. Step 2: Convert to fraction form
    10,860.56/14,988.89 = 6,143.93/x
  3. Step 3: Cross multiply
    10,860.56x = 14,988.89 × 6,143.93
  4. Step 4: Simplify right side
    10,860.56x = 92,090,660.22
  5. Step 5: Solve for x
    x = 92,090,660.22/10,860.56
  6. Step 6: Final answer
    x = 8,479.37

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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.