Home / 13,434.76-20,142.51-6,315.01

Finding the Fourth Proportional to 13,434.76, 20,142.51 and 6,315.01

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Solution

The fourth proportional to 13,434.76, 20,142.51 and 6,315.01 is: 9,467.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.76 : 20,142.51 = 6,315.01 : x
  2. Step 2: Convert to fraction form
    13,434.76/20,142.51 = 6,315.01/x
  3. Step 3: Cross multiply
    13,434.76x = 20,142.51 × 6,315.01
  4. Step 4: Simplify right side
    13,434.76x = 127,200,152.08
  5. Step 5: Solve for x
    x = 127,200,152.08/13,434.76
  6. Step 6: Final answer
    x = 9,467.99

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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.