Home / 13,665.06-20,500.47-4,307.74

Finding the Fourth Proportional to 13,665.06, 20,500.47 and 4,307.74

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Solution

The fourth proportional to 13,665.06, 20,500.47 and 4,307.74 is: 6,462.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665.06 : 20,500.47 = 4,307.74 : x
  2. Step 2: Convert to fraction form
    13,665.06/20,500.47 = 4,307.74/x
  3. Step 3: Cross multiply
    13,665.06x = 20,500.47 × 4,307.74
  4. Step 4: Simplify right side
    13,665.06x = 88,310,643.39
  5. Step 5: Solve for x
    x = 88,310,643.39/13,665.06
  6. Step 6: Final answer
    x = 6,462.51

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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.