Home / 12,458.72-18,695.28-4,666.40

Finding the Fourth Proportional to 12,458.72, 18,695.28 and 4,666.40

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Solution

The fourth proportional to 12,458.72, 18,695.28 and 4,666.40 is: 7,002.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.72 : 18,695.28 = 4,666.40 : x
  2. Step 2: Convert to fraction form
    12,458.72/18,695.28 = 4,666.40/x
  3. Step 3: Cross multiply
    12,458.72x = 18,695.28 × 4,666.40
  4. Step 4: Simplify right side
    12,458.72x = 87,239,654.59
  5. Step 5: Solve for x
    x = 87,239,654.59/12,458.72
  6. Step 6: Final answer
    x = 7,002.30

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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.