Home / 9,160.87-12,641.93-5,127.70

Finding the Fourth Proportional to 9,160.87, 12,641.93 and 5,127.70

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Solution

The fourth proportional to 9,160.87, 12,641.93 and 5,127.70 is: 7,076.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,160.87 : 12,641.93 = 5,127.70 : x
  2. Step 2: Convert to fraction form
    9,160.87/12,641.93 = 5,127.70/x
  3. Step 3: Cross multiply
    9,160.87x = 12,641.93 × 5,127.70
  4. Step 4: Simplify right side
    9,160.87x = 64,824,024.46
  5. Step 5: Solve for x
    x = 64,824,024.46/9,160.87
  6. Step 6: Final answer
    x = 7,076.19

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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.