Home / 10,750.05-14,840.10-7,170.98

Finding the Fourth Proportional to 10,750.05, 14,840.10 and 7,170.98

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Solution

The fourth proportional to 10,750.05, 14,840.10 and 7,170.98 is: 9,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,750.05 : 14,840.10 = 7,170.98 : x
  2. Step 2: Convert to fraction form
    10,750.05/14,840.10 = 7,170.98/x
  3. Step 3: Cross multiply
    10,750.05x = 14,840.10 × 7,170.98
  4. Step 4: Simplify right side
    10,750.05x = 106,417,986.10
  5. Step 5: Solve for x
    x = 106,417,986.10/10,750.05
  6. Step 6: Final answer
    x = 9,899.30

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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.