Home / 18,870.47-26,044.64-12,164.48

Finding the Fourth Proportional to 18,870.47, 26,044.64 and 12,164.48

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Solution

The fourth proportional to 18,870.47, 26,044.64 and 12,164.48 is: 16,789.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.47 : 26,044.64 = 12,164.48 : x
  2. Step 2: Convert to fraction form
    18,870.47/26,044.64 = 12,164.48/x
  3. Step 3: Cross multiply
    18,870.47x = 26,044.64 × 12,164.48
  4. Step 4: Simplify right side
    18,870.47x = 316,819,311.34
  5. Step 5: Solve for x
    x = 316,819,311.34/18,870.47
  6. Step 6: Final answer
    x = 16,789.16

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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.