Home / 15,726.48-23,581.18-7,811.63

Finding the Fourth Proportional to 15,726.48, 23,581.18 and 7,811.63

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Solution

The fourth proportional to 15,726.48, 23,581.18 and 7,811.63 is: 11,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,726.48 : 23,581.18 = 7,811.63 : x
  2. Step 2: Convert to fraction form
    15,726.48/23,581.18 = 7,811.63/x
  3. Step 3: Cross multiply
    15,726.48x = 23,581.18 × 7,811.63
  4. Step 4: Simplify right side
    15,726.48x = 184,207,453.12
  5. Step 5: Solve for x
    x = 184,207,453.12/15,726.48
  6. Step 6: Final answer
    x = 11,713.20

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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.