Home / 18,521.16-25,572.95-11,360.96

Finding the Fourth Proportional to 18,521.16, 25,572.95 and 11,360.96

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Solution

The fourth proportional to 18,521.16, 25,572.95 and 11,360.96 is: 15,686.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.16 : 25,572.95 = 11,360.96 : x
  2. Step 2: Convert to fraction form
    18,521.16/25,572.95 = 11,360.96/x
  3. Step 3: Cross multiply
    18,521.16x = 25,572.95 × 11,360.96
  4. Step 4: Simplify right side
    18,521.16x = 290,533,077.36
  5. Step 5: Solve for x
    x = 290,533,077.36/18,521.16
  6. Step 6: Final answer
    x = 15,686.55

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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.