Home / 25,143.18-37,709.77-12,479.72

Finding the Fourth Proportional to 25,143.18, 37,709.77 and 12,479.72

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Solution

The fourth proportional to 25,143.18, 37,709.77 and 12,479.72 is: 18,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,143.18 : 37,709.77 = 12,479.72 : x
  2. Step 2: Convert to fraction form
    25,143.18/37,709.77 = 12,479.72/x
  3. Step 3: Cross multiply
    25,143.18x = 37,709.77 × 12,479.72
  4. Step 4: Simplify right side
    25,143.18x = 470,607,386.63
  5. Step 5: Solve for x
    x = 470,607,386.63/25,143.18
  6. Step 6: Final answer
    x = 18,717.10

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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.