Home / 13,102.46-19,642.64-5,316.74

Finding the Fourth Proportional to 13,102.46, 19,642.64 and 5,316.74

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Solution

The fourth proportional to 13,102.46, 19,642.64 and 5,316.74 is: 7,970.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.46 : 19,642.64 = 5,316.74 : x
  2. Step 2: Convert to fraction form
    13,102.46/19,642.64 = 5,316.74/x
  3. Step 3: Cross multiply
    13,102.46x = 19,642.64 × 5,316.74
  4. Step 4: Simplify right side
    13,102.46x = 104,434,809.79
  5. Step 5: Solve for x
    x = 104,434,809.79/13,102.46
  6. Step 6: Final answer
    x = 7,970.63

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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.