Home / 10,808.12-14,915.28-6,615.56

Finding the Fourth Proportional to 10,808.12, 14,915.28 and 6,615.56

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Solution

The fourth proportional to 10,808.12, 14,915.28 and 6,615.56 is: 9,129.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,808.12 : 14,915.28 = 6,615.56 : x
  2. Step 2: Convert to fraction form
    10,808.12/14,915.28 = 6,615.56/x
  3. Step 3: Cross multiply
    10,808.12x = 14,915.28 × 6,615.56
  4. Step 4: Simplify right side
    10,808.12x = 98,672,929.76
  5. Step 5: Solve for x
    x = 98,672,929.76/10,808.12
  6. Step 6: Final answer
    x = 9,129.52

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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.