Home / 15,001.32-20,688.37-12,491.74

Finding the Fourth Proportional to 15,001.32, 20,688.37 and 12,491.74

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Solution

The fourth proportional to 15,001.32, 20,688.37 and 12,491.74 is: 17,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001.32 : 20,688.37 = 12,491.74 : x
  2. Step 2: Convert to fraction form
    15,001.32/20,688.37 = 12,491.74/x
  3. Step 3: Cross multiply
    15,001.32x = 20,688.37 × 12,491.74
  4. Step 4: Simplify right side
    15,001.32x = 258,433,739.06
  5. Step 5: Solve for x
    x = 258,433,739.06/15,001.32
  6. Step 6: Final answer
    x = 17,227.40

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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.