Home / 7,810.32-11,715.56-4,521.40

Finding the Fourth Proportional to 7,810.32, 11,715.56 and 4,521.40

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Solution

The fourth proportional to 7,810.32, 11,715.56 and 4,521.40 is: 6,782.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.32 : 11,715.56 = 4,521.40 : x
  2. Step 2: Convert to fraction form
    7,810.32/11,715.56 = 4,521.40/x
  3. Step 3: Cross multiply
    7,810.32x = 11,715.56 × 4,521.40
  4. Step 4: Simplify right side
    7,810.32x = 52,970,732.98
  5. Step 5: Solve for x
    x = 52,970,732.98/7,810.32
  6. Step 6: Final answer
    x = 6,782.15

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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.