Home / 10,648.08-14,690.16-7,113.60

Finding the Fourth Proportional to 10,648.08, 14,690.16 and 7,113.60

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Solution

The fourth proportional to 10,648.08, 14,690.16 and 7,113.60 is: 9,813.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,648.08 : 14,690.16 = 7,113.60 : x
  2. Step 2: Convert to fraction form
    10,648.08/14,690.16 = 7,113.60/x
  3. Step 3: Cross multiply
    10,648.08x = 14,690.16 × 7,113.60
  4. Step 4: Simplify right side
    10,648.08x = 104,499,922.18
  5. Step 5: Solve for x
    x = 104,499,922.18/10,648.08
  6. Step 6: Final answer
    x = 9,813.97

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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.