Home / 13,353.93-18,411.67-8,565.43

Finding the Fourth Proportional to 13,353.93, 18,411.67 and 8,565.43

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Solution

The fourth proportional to 13,353.93, 18,411.67 and 8,565.43 is: 11,809.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.93 : 18,411.67 = 8,565.43 : x
  2. Step 2: Convert to fraction form
    13,353.93/18,411.67 = 8,565.43/x
  3. Step 3: Cross multiply
    13,353.93x = 18,411.67 × 8,565.43
  4. Step 4: Simplify right side
    13,353.93x = 157,703,870.57
  5. Step 5: Solve for x
    x = 157,703,870.57/13,353.93
  6. Step 6: Final answer
    x = 11,809.55

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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.