Home / 15,190.48-22,785.72-12,587.95

Finding the Fourth Proportional to 15,190.48, 22,785.72 and 12,587.95

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Solution

The fourth proportional to 15,190.48, 22,785.72 and 12,587.95 is: 18,881.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.48 : 22,785.72 = 12,587.95 : x
  2. Step 2: Convert to fraction form
    15,190.48/22,785.72 = 12,587.95/x
  3. Step 3: Cross multiply
    15,190.48x = 22,785.72 × 12,587.95
  4. Step 4: Simplify right side
    15,190.48x = 286,825,526.86
  5. Step 5: Solve for x
    x = 286,825,526.86/15,190.48
  6. Step 6: Final answer
    x = 18,881.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.