Home / 13,347.12-18,417.42-7,377.98

Finding the Fourth Proportional to 13,347.12, 18,417.42 and 7,377.98

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Solution

The fourth proportional to 13,347.12, 18,417.42 and 7,377.98 is: 10,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.12 : 18,417.42 = 7,377.98 : x
  2. Step 2: Convert to fraction form
    13,347.12/18,417.42 = 7,377.98/x
  3. Step 3: Cross multiply
    13,347.12x = 18,417.42 × 7,377.98
  4. Step 4: Simplify right side
    13,347.12x = 135,883,356.41
  5. Step 5: Solve for x
    x = 135,883,356.41/13,347.12
  6. Step 6: Final answer
    x = 10,180.72

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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.