Home / 13,162.40-19,746.88-9,274.40

Finding the Fourth Proportional to 13,162.40, 19,746.88 and 9,274.40

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Solution

The fourth proportional to 13,162.40, 19,746.88 and 9,274.40 is: 13,913.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.40 : 19,746.88 = 9,274.40 : x
  2. Step 2: Convert to fraction form
    13,162.40/19,746.88 = 9,274.40/x
  3. Step 3: Cross multiply
    13,162.40x = 19,746.88 × 9,274.40
  4. Step 4: Simplify right side
    13,162.40x = 183,140,463.87
  5. Step 5: Solve for x
    x = 183,140,463.87/13,162.40
  6. Step 6: Final answer
    x = 13,913.91

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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.