Home / 13,859.04-20,770.56-10,560

Finding the Fourth Proportional to 13,859.04, 20,770.56 and 10,560

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Solution

The fourth proportional to 13,859.04, 20,770.56 and 10,560 is: 15,826.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.04 : 20,770.56 = 10,560 : x
  2. Step 2: Convert to fraction form
    13,859.04/20,770.56 = 10,560/x
  3. Step 3: Cross multiply
    13,859.04x = 20,770.56 × 10,560
  4. Step 4: Simplify right side
    13,859.04x = 219,337,113.60
  5. Step 5: Solve for x
    x = 219,337,113.60/13,859.04
  6. Step 6: Final answer
    x = 15,826.28

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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.