Home / 9,380.51-12,944.61-5,130.74

Finding the Fourth Proportional to 9,380.51, 12,944.61 and 5,130.74

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Solution

The fourth proportional to 9,380.51, 12,944.61 and 5,130.74 is: 7,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,380.51 : 12,944.61 = 5,130.74 : x
  2. Step 2: Convert to fraction form
    9,380.51/12,944.61 = 5,130.74/x
  3. Step 3: Cross multiply
    9,380.51x = 12,944.61 × 5,130.74
  4. Step 4: Simplify right side
    9,380.51x = 66,415,363.59
  5. Step 5: Solve for x
    x = 66,415,363.59/9,380.51
  6. Step 6: Final answer
    x = 7,080.15

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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.