Home / 19,454.52-26,856.18-12,740.43

Finding the Fourth Proportional to 19,454.52, 26,856.18 and 12,740.43

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Solution

The fourth proportional to 19,454.52, 26,856.18 and 12,740.43 is: 17,587.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,454.52 : 26,856.18 = 12,740.43 : x
  2. Step 2: Convert to fraction form
    19,454.52/26,856.18 = 12,740.43/x
  3. Step 3: Cross multiply
    19,454.52x = 26,856.18 × 12,740.43
  4. Step 4: Simplify right side
    19,454.52x = 342,159,281.36
  5. Step 5: Solve for x
    x = 342,159,281.36/19,454.52
  6. Step 6: Final answer
    x = 17,587.65

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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.