Home / 10,985.11-15,160.54-6,270.10

Finding the Fourth Proportional to 10,985.11, 15,160.54 and 6,270.10

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Solution

The fourth proportional to 10,985.11, 15,160.54 and 6,270.10 is: 8,653.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.11 : 15,160.54 = 6,270.10 : x
  2. Step 2: Convert to fraction form
    10,985.11/15,160.54 = 6,270.10/x
  3. Step 3: Cross multiply
    10,985.11x = 15,160.54 × 6,270.10
  4. Step 4: Simplify right side
    10,985.11x = 95,058,048.28
  5. Step 5: Solve for x
    x = 95,058,048.28/10,985.11
  6. Step 6: Final answer
    x = 8,653.36

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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.