Home / 8,521.24-11,775.90-6,924.76

Finding the Fourth Proportional to 8,521.24, 11,775.90 and 6,924.76

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Solution

The fourth proportional to 8,521.24, 11,775.90 and 6,924.76 is: 9,569.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.24 : 11,775.90 = 6,924.76 : x
  2. Step 2: Convert to fraction form
    8,521.24/11,775.90 = 6,924.76/x
  3. Step 3: Cross multiply
    8,521.24x = 11,775.90 × 6,924.76
  4. Step 4: Simplify right side
    8,521.24x = 81,545,281.28
  5. Step 5: Solve for x
    x = 81,545,281.28/8,521.24
  6. Step 6: Final answer
    x = 9,569.65

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Half scale
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Double scale
Find fourth proportional to 8,522.24, 11,777.28 and 6,925.76
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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.