Home / 11,655.27-16,085.43-7,117.70

Finding the Fourth Proportional to 11,655.27, 16,085.43 and 7,117.70

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Solution

The fourth proportional to 11,655.27, 16,085.43 and 7,117.70 is: 9,823.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,655.27 : 16,085.43 = 7,117.70 : x
  2. Step 2: Convert to fraction form
    11,655.27/16,085.43 = 7,117.70/x
  3. Step 3: Cross multiply
    11,655.27x = 16,085.43 × 7,117.70
  4. Step 4: Simplify right side
    11,655.27x = 114,491,271.70
  5. Step 5: Solve for x
    x = 114,491,271.70/11,655.27
  6. Step 6: Final answer
    x = 9,823.13

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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.