Home / 12,656.07-18,966.29-5,985.45

Finding the Fourth Proportional to 12,656.07, 18,966.29 and 5,985.45

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Solution

The fourth proportional to 12,656.07, 18,966.29 and 5,985.45 is: 8,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.07 : 18,966.29 = 5,985.45 : x
  2. Step 2: Convert to fraction form
    12,656.07/18,966.29 = 5,985.45/x
  3. Step 3: Cross multiply
    12,656.07x = 18,966.29 × 5,985.45
  4. Step 4: Simplify right side
    12,656.07x = 113,521,750.55
  5. Step 5: Solve for x
    x = 113,521,750.55/12,656.07
  6. Step 6: Final answer
    x = 8,969.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.