Home / 10,980.50-15,153.10-6,266.30

Finding the Fourth Proportional to 10,980.50, 15,153.10 and 6,266.30

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Solution

The fourth proportional to 10,980.50, 15,153.10 and 6,266.30 is: 8,647.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.50 : 15,153.10 = 6,266.30 : x
  2. Step 2: Convert to fraction form
    10,980.50/15,153.10 = 6,266.30/x
  3. Step 3: Cross multiply
    10,980.50x = 15,153.10 × 6,266.30
  4. Step 4: Simplify right side
    10,980.50x = 94,953,870.53
  5. Step 5: Solve for x
    x = 94,953,870.53/10,980.50
  6. Step 6: Final answer
    x = 8,647.50

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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.