Home / 8,908.10-12,289.19-5,130.27

Finding the Fourth Proportional to 8,908.10, 12,289.19 and 5,130.27

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Solution

The fourth proportional to 8,908.10, 12,289.19 and 5,130.27 is: 7,077.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.10 : 12,289.19 = 5,130.27 : x
  2. Step 2: Convert to fraction form
    8,908.10/12,289.19 = 5,130.27/x
  3. Step 3: Cross multiply
    8,908.10x = 12,289.19 × 5,130.27
  4. Step 4: Simplify right side
    8,908.10x = 63,046,810.70
  5. Step 5: Solve for x
    x = 63,046,810.70/8,908.10
  6. Step 6: Final answer
    x = 7,077.47

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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.