Home / 6,875.80-10,313.70-5,126.20

Finding the Fourth Proportional to 6,875.80, 10,313.70 and 5,126.20

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Solution

The fourth proportional to 6,875.80, 10,313.70 and 5,126.20 is: 7,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.80 : 10,313.70 = 5,126.20 : x
  2. Step 2: Convert to fraction form
    6,875.80/10,313.70 = 5,126.20/x
  3. Step 3: Cross multiply
    6,875.80x = 10,313.70 × 5,126.20
  4. Step 4: Simplify right side
    6,875.80x = 52,870,088.94
  5. Step 5: Solve for x
    x = 52,870,088.94/6,875.80
  6. Step 6: Final answer
    x = 7,689.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.