Home / 10,911.04-15,058.64-6,661.20

Finding the Fourth Proportional to 10,911.04, 15,058.64 and 6,661.20

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Solution

The fourth proportional to 10,911.04, 15,058.64 and 6,661.20 is: 9,193.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.04 : 15,058.64 = 6,661.20 : x
  2. Step 2: Convert to fraction form
    10,911.04/15,058.64 = 6,661.20/x
  3. Step 3: Cross multiply
    10,911.04x = 15,058.64 × 6,661.20
  4. Step 4: Simplify right side
    10,911.04x = 100,308,612.77
  5. Step 5: Solve for x
    x = 100,308,612.77/10,911.04
  6. Step 6: Final answer
    x = 9,193.31

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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.