Home / 12,264.48-16,918.56-7,155.36

Finding the Fourth Proportional to 12,264.48, 16,918.56 and 7,155.36

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Solution

The fourth proportional to 12,264.48, 16,918.56 and 7,155.36 is: 9,870.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,264.48 : 16,918.56 = 7,155.36 : x
  2. Step 2: Convert to fraction form
    12,264.48/16,918.56 = 7,155.36/x
  3. Step 3: Cross multiply
    12,264.48x = 16,918.56 × 7,155.36
  4. Step 4: Simplify right side
    12,264.48x = 121,058,387.48
  5. Step 5: Solve for x
    x = 121,058,387.48/12,264.48
  6. Step 6: Final answer
    x = 9,870.65

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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.