Home / 10,840.02-14,954.67-8,487.78

Finding the Fourth Proportional to 10,840.02, 14,954.67 and 8,487.78

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Solution

The fourth proportional to 10,840.02, 14,954.67 and 8,487.78 is: 11,709.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,840.02 : 14,954.67 = 8,487.78 : x
  2. Step 2: Convert to fraction form
    10,840.02/14,954.67 = 8,487.78/x
  3. Step 3: Cross multiply
    10,840.02x = 14,954.67 × 8,487.78
  4. Step 4: Simplify right side
    10,840.02x = 126,931,948.93
  5. Step 5: Solve for x
    x = 126,931,948.93/10,840.02
  6. Step 6: Final answer
    x = 11,709.57

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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.