Home / 13,065.02-18,023.70-7,756.82

Finding the Fourth Proportional to 13,065.02, 18,023.70 and 7,756.82

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Solution

The fourth proportional to 13,065.02, 18,023.70 and 7,756.82 is: 10,700.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065.02 : 18,023.70 = 7,756.82 : x
  2. Step 2: Convert to fraction form
    13,065.02/18,023.70 = 7,756.82/x
  3. Step 3: Cross multiply
    13,065.02x = 18,023.70 × 7,756.82
  4. Step 4: Simplify right side
    13,065.02x = 139,806,596.63
  5. Step 5: Solve for x
    x = 139,806,596.63/13,065.02
  6. Step 6: Final answer
    x = 10,700.83

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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.