Home / 12,307.34-18,462.83-6,464.40

Finding the Fourth Proportional to 12,307.34, 18,462.83 and 6,464.40

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Solution

The fourth proportional to 12,307.34, 18,462.83 and 6,464.40 is: 9,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.34 : 18,462.83 = 6,464.40 : x
  2. Step 2: Convert to fraction form
    12,307.34/18,462.83 = 6,464.40/x
  3. Step 3: Cross multiply
    12,307.34x = 18,462.83 × 6,464.40
  4. Step 4: Simplify right side
    12,307.34x = 119,351,085.93
  5. Step 5: Solve for x
    x = 119,351,085.93/12,307.34
  6. Step 6: Final answer
    x = 9,697.56

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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.