Home / 10,645.20-14,690.70-5,865.45

Finding the Fourth Proportional to 10,645.20, 14,690.70 and 5,865.45

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Solution

The fourth proportional to 10,645.20, 14,690.70 and 5,865.45 is: 8,094.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.20 : 14,690.70 = 5,865.45 : x
  2. Step 2: Convert to fraction form
    10,645.20/14,690.70 = 5,865.45/x
  3. Step 3: Cross multiply
    10,645.20x = 14,690.70 × 5,865.45
  4. Step 4: Simplify right side
    10,645.20x = 86,167,566.32
  5. Step 5: Solve for x
    x = 86,167,566.32/10,645.20
  6. Step 6: Final answer
    x = 8,094.50

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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.