Home / 12,307.55-18,460.71-4,515.75

Finding the Fourth Proportional to 12,307.55, 18,460.71 and 4,515.75

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Solution

The fourth proportional to 12,307.55, 18,460.71 and 4,515.75 is: 6,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.55 : 18,460.71 = 4,515.75 : x
  2. Step 2: Convert to fraction form
    12,307.55/18,460.71 = 4,515.75/x
  3. Step 3: Cross multiply
    12,307.55x = 18,460.71 × 4,515.75
  4. Step 4: Simplify right side
    12,307.55x = 83,363,951.18
  5. Step 5: Solve for x
    x = 83,363,951.18/12,307.55
  6. Step 6: Final answer
    x = 6,773.40

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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.