Home / 12,307.55-16,985.84-7,003.19

Finding the Fourth Proportional to 12,307.55, 16,985.84 and 7,003.19

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Solution

The fourth proportional to 12,307.55, 16,985.84 and 7,003.19 is: 9,665.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.55 : 16,985.84 = 7,003.19 : x
  2. Step 2: Convert to fraction form
    12,307.55/16,985.84 = 7,003.19/x
  3. Step 3: Cross multiply
    12,307.55x = 16,985.84 × 7,003.19
  4. Step 4: Simplify right side
    12,307.55x = 118,955,072.28
  5. Step 5: Solve for x
    x = 118,955,072.28/12,307.55
  6. Step 6: Final answer
    x = 9,665.22

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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.