Home / 13,430.84-20,148.34-6,853.46

Finding the Fourth Proportional to 13,430.84, 20,148.34 and 6,853.46

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Solution

The fourth proportional to 13,430.84, 20,148.34 and 6,853.46 is: 10,281.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.84 : 20,148.34 = 6,853.46 : x
  2. Step 2: Convert to fraction form
    13,430.84/20,148.34 = 6,853.46/x
  3. Step 3: Cross multiply
    13,430.84x = 20,148.34 × 6,853.46
  4. Step 4: Simplify right side
    13,430.84x = 138,085,842.26
  5. Step 5: Solve for x
    x = 138,085,842.26/13,430.84
  6. Step 6: Final answer
    x = 10,281.25

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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.