Home / 13,426.52-18,547.28-12,770.44

Finding the Fourth Proportional to 13,426.52, 18,547.28 and 12,770.44

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Solution

The fourth proportional to 13,426.52, 18,547.28 and 12,770.44 is: 17,640.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.52 : 18,547.28 = 12,770.44 : x
  2. Step 2: Convert to fraction form
    13,426.52/18,547.28 = 12,770.44/x
  3. Step 3: Cross multiply
    13,426.52x = 18,547.28 × 12,770.44
  4. Step 4: Simplify right side
    13,426.52x = 236,856,926.40
  5. Step 5: Solve for x
    x = 236,856,926.40/13,426.52
  6. Step 6: Final answer
    x = 17,640.98

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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.