Home / 12,458.60-18,695.10-4,668.20

Finding the Fourth Proportional to 12,458.60, 18,695.10 and 4,668.20

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Solution

The fourth proportional to 12,458.60, 18,695.10 and 4,668.20 is: 7,005.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.60 : 18,695.10 = 4,668.20 : x
  2. Step 2: Convert to fraction form
    12,458.60/18,695.10 = 4,668.20/x
  3. Step 3: Cross multiply
    12,458.60x = 18,695.10 × 4,668.20
  4. Step 4: Simplify right side
    12,458.60x = 87,272,465.82
  5. Step 5: Solve for x
    x = 87,272,465.82/12,458.60
  6. Step 6: Final answer
    x = 7,005.00

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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.