Home / 15,259.16-21,058.37-8,543.45

Finding the Fourth Proportional to 15,259.16, 21,058.37 and 8,543.45

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Solution

The fourth proportional to 15,259.16, 21,058.37 and 8,543.45 is: 11,790.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,259.16 : 21,058.37 = 8,543.45 : x
  2. Step 2: Convert to fraction form
    15,259.16/21,058.37 = 8,543.45/x
  3. Step 3: Cross multiply
    15,259.16x = 21,058.37 × 8,543.45
  4. Step 4: Simplify right side
    15,259.16x = 179,910,983.17
  5. Step 5: Solve for x
    x = 179,910,983.17/15,259.16
  6. Step 6: Final answer
    x = 11,790.36

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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.