Home / 19,416.78-26,803.98-12,702.69

Finding the Fourth Proportional to 19,416.78, 26,803.98 and 12,702.69

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Solution

The fourth proportional to 19,416.78, 26,803.98 and 12,702.69 is: 17,535.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,416.78 : 26,803.98 = 12,702.69 : x
  2. Step 2: Convert to fraction form
    19,416.78/26,803.98 = 12,702.69/x
  3. Step 3: Cross multiply
    19,416.78x = 26,803.98 × 12,702.69
  4. Step 4: Simplify right side
    19,416.78x = 340,482,648.71
  5. Step 5: Solve for x
    x = 340,482,648.71/19,416.78
  6. Step 6: Final answer
    x = 17,535.48

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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.