Home / 8,908.23-12,292.74-5,130.51

Finding the Fourth Proportional to 8,908.23, 12,292.74 and 5,130.51

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Solution

The fourth proportional to 8,908.23, 12,292.74 and 5,130.51 is: 7,079.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.23 : 12,292.74 = 5,130.51 : x
  2. Step 2: Convert to fraction form
    8,908.23/12,292.74 = 5,130.51/x
  3. Step 3: Cross multiply
    8,908.23x = 12,292.74 × 5,130.51
  4. Step 4: Simplify right side
    8,908.23x = 63,068,025.50
  5. Step 5: Solve for x
    x = 63,068,025.50/8,908.23
  6. Step 6: Final answer
    x = 7,079.75

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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.