Home / 14,710.34-20,300.28-8,422.76

Finding the Fourth Proportional to 14,710.34, 20,300.28 and 8,422.76

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Solution

The fourth proportional to 14,710.34, 20,300.28 and 8,422.76 is: 11,623.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,710.34 : 20,300.28 = 8,422.76 : x
  2. Step 2: Convert to fraction form
    14,710.34/20,300.28 = 8,422.76/x
  3. Step 3: Cross multiply
    14,710.34x = 20,300.28 × 8,422.76
  4. Step 4: Simplify right side
    14,710.34x = 170,984,386.37
  5. Step 5: Solve for x
    x = 170,984,386.37/14,710.34
  6. Step 6: Final answer
    x = 11,623.41

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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.