Home / 18,970.08-26,179.02-12,607.44

Finding the Fourth Proportional to 18,970.08, 26,179.02 and 12,607.44

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Solution

The fourth proportional to 18,970.08, 26,179.02 and 12,607.44 is: 17,398.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.08 : 26,179.02 = 12,607.44 : x
  2. Step 2: Convert to fraction form
    18,970.08/26,179.02 = 12,607.44/x
  3. Step 3: Cross multiply
    18,970.08x = 26,179.02 × 12,607.44
  4. Step 4: Simplify right side
    18,970.08x = 330,050,423.91
  5. Step 5: Solve for x
    x = 330,050,423.91/18,970.08
  6. Step 6: Final answer
    x = 17,398.47

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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.