Home / 12,275.40-18,416.28-3,510.96

Finding the Fourth Proportional to 12,275.40, 18,416.28 and 3,510.96

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Solution

The fourth proportional to 12,275.40, 18,416.28 and 3,510.96 is: 5,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,275.40 : 18,416.28 = 3,510.96 : x
  2. Step 2: Convert to fraction form
    12,275.40/18,416.28 = 3,510.96/x
  3. Step 3: Cross multiply
    12,275.40x = 18,416.28 × 3,510.96
  4. Step 4: Simplify right side
    12,275.40x = 64,658,822.43
  5. Step 5: Solve for x
    x = 64,658,822.43/12,275.40
  6. Step 6: Final answer
    x = 5,267.35

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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.