Home / 10,099.79-15,151.73-4,256.40

Finding the Fourth Proportional to 10,099.79, 15,151.73 and 4,256.40

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Solution

The fourth proportional to 10,099.79, 15,151.73 and 4,256.40 is: 6,385.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,099.79 : 15,151.73 = 4,256.40 : x
  2. Step 2: Convert to fraction form
    10,099.79/15,151.73 = 4,256.40/x
  3. Step 3: Cross multiply
    10,099.79x = 15,151.73 × 4,256.40
  4. Step 4: Simplify right side
    10,099.79x = 64,491,823.57
  5. Step 5: Solve for x
    x = 64,491,823.57/10,099.79
  6. Step 6: Final answer
    x = 6,385.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.