Home / 11,307.60-16,963.56-3,913.20

Finding the Fourth Proportional to 11,307.60, 16,963.56 and 3,913.20

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Solution

The fourth proportional to 11,307.60, 16,963.56 and 3,913.20 is: 5,870.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,307.60 : 16,963.56 = 3,913.20 : x
  2. Step 2: Convert to fraction form
    11,307.60/16,963.56 = 3,913.20/x
  3. Step 3: Cross multiply
    11,307.60x = 16,963.56 × 3,913.20
  4. Step 4: Simplify right side
    11,307.60x = 66,381,802.99
  5. Step 5: Solve for x
    x = 66,381,802.99/11,307.60
  6. Step 6: Final answer
    x = 5,870.55

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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.