Home / 11,707.61-16,156.49-6,402.47

Finding the Fourth Proportional to 11,707.61, 16,156.49 and 6,402.47

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Solution

The fourth proportional to 11,707.61, 16,156.49 and 6,402.47 is: 8,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,707.61 : 16,156.49 = 6,402.47 : x
  2. Step 2: Convert to fraction form
    11,707.61/16,156.49 = 6,402.47/x
  3. Step 3: Cross multiply
    11,707.61x = 16,156.49 × 6,402.47
  4. Step 4: Simplify right side
    11,707.61x = 103,441,329.74
  5. Step 5: Solve for x
    x = 103,441,329.74/11,707.61
  6. Step 6: Final answer
    x = 8,835.40

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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.