Home / 15,590.61-21,498.67-10,278.63

Finding the Fourth Proportional to 15,590.61, 21,498.67 and 10,278.63

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Solution

The fourth proportional to 15,590.61, 21,498.67 and 10,278.63 is: 14,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.61 : 21,498.67 = 10,278.63 : x
  2. Step 2: Convert to fraction form
    15,590.61/21,498.67 = 10,278.63/x
  3. Step 3: Cross multiply
    15,590.61x = 21,498.67 × 10,278.63
  4. Step 4: Simplify right side
    15,590.61x = 220,976,874.42
  5. Step 5: Solve for x
    x = 220,976,874.42/15,590.61
  6. Step 6: Final answer
    x = 14,173.72

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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.