Home / 12,307.24-18,459.30-4,515.40

Finding the Fourth Proportional to 12,307.24, 18,459.30 and 4,515.40

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Solution

The fourth proportional to 12,307.24, 18,459.30 and 4,515.40 is: 6,772.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.24 : 18,459.30 = 4,515.40 : x
  2. Step 2: Convert to fraction form
    12,307.24/18,459.30 = 4,515.40/x
  3. Step 3: Cross multiply
    12,307.24x = 18,459.30 × 4,515.40
  4. Step 4: Simplify right side
    12,307.24x = 83,351,123.22
  5. Step 5: Solve for x
    x = 83,351,123.22/12,307.24
  6. Step 6: Final answer
    x = 6,772.53

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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.