Home / 10,782.40-14,878.32-6,065.77

Finding the Fourth Proportional to 10,782.40, 14,878.32 and 6,065.77

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Solution

The fourth proportional to 10,782.40, 14,878.32 and 6,065.77 is: 8,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,782.40 : 14,878.32 = 6,065.77 : x
  2. Step 2: Convert to fraction form
    10,782.40/14,878.32 = 6,065.77/x
  3. Step 3: Cross multiply
    10,782.40x = 14,878.32 × 6,065.77
  4. Step 4: Simplify right side
    10,782.40x = 90,248,467.11
  5. Step 5: Solve for x
    x = 90,248,467.11/10,782.40
  6. Step 6: Final answer
    x = 8,369.98

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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.