Home / 19,117.98-26,384.40-10,620.90

Finding the Fourth Proportional to 19,117.98, 26,384.40 and 10,620.90

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Solution

The fourth proportional to 19,117.98, 26,384.40 and 10,620.90 is: 14,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117.98 : 26,384.40 = 10,620.90 : x
  2. Step 2: Convert to fraction form
    19,117.98/26,384.40 = 10,620.90/x
  3. Step 3: Cross multiply
    19,117.98x = 26,384.40 × 10,620.90
  4. Step 4: Simplify right side
    19,117.98x = 280,226,073.96
  5. Step 5: Solve for x
    x = 280,226,073.96/19,117.98
  6. Step 6: Final answer
    x = 14,657.72

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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.