Home / 12,656.07-18,984.20-5,260.77

Finding the Fourth Proportional to 12,656.07, 18,984.20 and 5,260.77

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Solution

The fourth proportional to 12,656.07, 18,984.20 and 5,260.77 is: 7,891.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.07 : 18,984.20 = 5,260.77 : x
  2. Step 2: Convert to fraction form
    12,656.07/18,984.20 = 5,260.77/x
  3. Step 3: Cross multiply
    12,656.07x = 18,984.20 × 5,260.77
  4. Step 4: Simplify right side
    12,656.07x = 99,871,483.53
  5. Step 5: Solve for x
    x = 99,871,483.53/12,656.07
  6. Step 6: Final answer
    x = 7,891.19

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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.