Home / 7,961.24-10,985.98-4,376.12

Finding the Fourth Proportional to 7,961.24, 10,985.98 and 4,376.12

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Solution

The fourth proportional to 7,961.24, 10,985.98 and 4,376.12 is: 6,038.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.24 : 10,985.98 = 4,376.12 : x
  2. Step 2: Convert to fraction form
    7,961.24/10,985.98 = 4,376.12/x
  3. Step 3: Cross multiply
    7,961.24x = 10,985.98 × 4,376.12
  4. Step 4: Simplify right side
    7,961.24x = 48,075,966.80
  5. Step 5: Solve for x
    x = 48,075,966.80/7,961.24
  6. Step 6: Final answer
    x = 6,038.75

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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.