Home / 10,809.90-14,915.39-6,563.20

Finding the Fourth Proportional to 10,809.90, 14,915.39 and 6,563.20

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Solution

The fourth proportional to 10,809.90, 14,915.39 and 6,563.20 is: 9,055.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,809.90 : 14,915.39 = 6,563.20 : x
  2. Step 2: Convert to fraction form
    10,809.90/14,915.39 = 6,563.20/x
  3. Step 3: Cross multiply
    10,809.90x = 14,915.39 × 6,563.20
  4. Step 4: Simplify right side
    10,809.90x = 97,892,580.26
  5. Step 5: Solve for x
    x = 97,892,580.26/10,809.90
  6. Step 6: Final answer
    x = 9,055.83

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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.