Home / 18,952.95-26,165.78-12,590.45

Finding the Fourth Proportional to 18,952.95, 26,165.78 and 12,590.45

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Solution

The fourth proportional to 18,952.95, 26,165.78 and 12,590.45 is: 17,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952.95 : 26,165.78 = 12,590.45 : x
  2. Step 2: Convert to fraction form
    18,952.95/26,165.78 = 12,590.45/x
  3. Step 3: Cross multiply
    18,952.95x = 26,165.78 × 12,590.45
  4. Step 4: Simplify right side
    18,952.95x = 329,438,944.80
  5. Step 5: Solve for x
    x = 329,438,944.80/18,952.95
  6. Step 6: Final answer
    x = 17,381.93

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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.