Home / 10,875.37-15,007.70-6,398.09

Finding the Fourth Proportional to 10,875.37, 15,007.70 and 6,398.09

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Solution

The fourth proportional to 10,875.37, 15,007.70 and 6,398.09 is: 8,829.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,875.37 : 15,007.70 = 6,398.09 : x
  2. Step 2: Convert to fraction form
    10,875.37/15,007.70 = 6,398.09/x
  3. Step 3: Cross multiply
    10,875.37x = 15,007.70 × 6,398.09
  4. Step 4: Simplify right side
    10,875.37x = 96,020,583.30
  5. Step 5: Solve for x
    x = 96,020,583.30/10,875.37
  6. Step 6: Final answer
    x = 8,829.18

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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.