Home / 7,903.09-10,908.23-5,781.70

Finding the Fourth Proportional to 7,903.09, 10,908.23 and 5,781.70

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Solution

The fourth proportional to 7,903.09, 10,908.23 and 5,781.70 is: 7,980.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.09 : 10,908.23 = 5,781.70 : x
  2. Step 2: Convert to fraction form
    7,903.09/10,908.23 = 5,781.70/x
  3. Step 3: Cross multiply
    7,903.09x = 10,908.23 × 5,781.70
  4. Step 4: Simplify right side
    7,903.09x = 63,068,113.39
  5. Step 5: Solve for x
    x = 63,068,113.39/7,903.09
  6. Step 6: Final answer
    x = 7,980.18

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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.