Home / 10,830.72-14,947.40-6,580.80

Finding the Fourth Proportional to 10,830.72, 14,947.40 and 6,580.80

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Solution

The fourth proportional to 10,830.72, 14,947.40 and 6,580.80 is: 9,082.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,830.72 : 14,947.40 = 6,580.80 : x
  2. Step 2: Convert to fraction form
    10,830.72/14,947.40 = 6,580.80/x
  3. Step 3: Cross multiply
    10,830.72x = 14,947.40 × 6,580.80
  4. Step 4: Simplify right side
    10,830.72x = 98,365,817.02
  5. Step 5: Solve for x
    x = 98,365,817.02/10,830.72
  6. Step 6: Final answer
    x = 9,082.11

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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.