Home / 12,730.06-17,577.80-7,955.56

Finding the Fourth Proportional to 12,730.06, 17,577.80 and 7,955.56

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Solution

The fourth proportional to 12,730.06, 17,577.80 and 7,955.56 is: 10,985.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730.06 : 17,577.80 = 7,955.56 : x
  2. Step 2: Convert to fraction form
    12,730.06/17,577.80 = 7,955.56/x
  3. Step 3: Cross multiply
    12,730.06x = 17,577.80 × 7,955.56
  4. Step 4: Simplify right side
    12,730.06x = 139,841,242.57
  5. Step 5: Solve for x
    x = 139,841,242.57/12,730.06
  6. Step 6: Final answer
    x = 10,985.12

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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.