Home / 18,964.16-26,151.12-12,588.50

Finding the Fourth Proportional to 18,964.16, 26,151.12 and 12,588.50

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Solution

The fourth proportional to 18,964.16, 26,151.12 and 12,588.50 is: 17,359.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964.16 : 26,151.12 = 12,588.50 : x
  2. Step 2: Convert to fraction form
    18,964.16/26,151.12 = 12,588.50/x
  3. Step 3: Cross multiply
    18,964.16x = 26,151.12 × 12,588.50
  4. Step 4: Simplify right side
    18,964.16x = 329,203,374.12
  5. Step 5: Solve for x
    x = 329,203,374.12/18,964.16
  6. Step 6: Final answer
    x = 17,359.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.