Home / 12,580.34-17,360.85-6,915.45

Finding the Fourth Proportional to 12,580.34, 17,360.85 and 6,915.45

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Solution

The fourth proportional to 12,580.34, 17,360.85 and 6,915.45 is: 9,543.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.34 : 17,360.85 = 6,915.45 : x
  2. Step 2: Convert to fraction form
    12,580.34/17,360.85 = 6,915.45/x
  3. Step 3: Cross multiply
    12,580.34x = 17,360.85 × 6,915.45
  4. Step 4: Simplify right side
    12,580.34x = 120,058,090.13
  5. Step 5: Solve for x
    x = 120,058,090.13/12,580.34
  6. Step 6: Final answer
    x = 9,543.31

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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.