Home / 18,315.07-27,444.18-12,703.69

Finding the Fourth Proportional to 18,315.07, 27,444.18 and 12,703.69

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Solution

The fourth proportional to 18,315.07, 27,444.18 and 12,703.69 is: 19,035.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.07 : 27,444.18 = 12,703.69 : x
  2. Step 2: Convert to fraction form
    18,315.07/27,444.18 = 12,703.69/x
  3. Step 3: Cross multiply
    18,315.07x = 27,444.18 × 12,703.69
  4. Step 4: Simplify right side
    18,315.07x = 348,642,355.02
  5. Step 5: Solve for x
    x = 348,642,355.02/18,315.07
  6. Step 6: Final answer
    x = 19,035.82

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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.