Home / 11,521.40-17,281.95-6,289.74

Finding the Fourth Proportional to 11,521.40, 17,281.95 and 6,289.74

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Solution

The fourth proportional to 11,521.40, 17,281.95 and 6,289.74 is: 9,434.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,521.40 : 17,281.95 = 6,289.74 : x
  2. Step 2: Convert to fraction form
    11,521.40/17,281.95 = 6,289.74/x
  3. Step 3: Cross multiply
    11,521.40x = 17,281.95 × 6,289.74
  4. Step 4: Simplify right side
    11,521.40x = 108,698,987.92
  5. Step 5: Solve for x
    x = 108,698,987.92/11,521.40
  6. Step 6: Final answer
    x = 9,434.53

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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.