Home / 13,265.96-18,307.02-7,960.77

Finding the Fourth Proportional to 13,265.96, 18,307.02 and 7,960.77

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Solution

The fourth proportional to 13,265.96, 18,307.02 and 7,960.77 is: 10,985.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.96 : 18,307.02 = 7,960.77 : x
  2. Step 2: Convert to fraction form
    13,265.96/18,307.02 = 7,960.77/x
  3. Step 3: Cross multiply
    13,265.96x = 18,307.02 × 7,960.77
  4. Step 4: Simplify right side
    13,265.96x = 145,737,975.61
  5. Step 5: Solve for x
    x = 145,737,975.61/13,265.96
  6. Step 6: Final answer
    x = 10,985.86

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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.