Home / 13,347.32-18,417.65-7,379.10

Finding the Fourth Proportional to 13,347.32, 18,417.65 and 7,379.10

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Solution

The fourth proportional to 13,347.32, 18,417.65 and 7,379.10 is: 10,182.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.32 : 18,417.65 = 7,379.10 : x
  2. Step 2: Convert to fraction form
    13,347.32/18,417.65 = 7,379.10/x
  3. Step 3: Cross multiply
    13,347.32x = 18,417.65 × 7,379.10
  4. Step 4: Simplify right side
    13,347.32x = 135,905,644.22
  5. Step 5: Solve for x
    x = 135,905,644.22/13,347.32
  6. Step 6: Final answer
    x = 10,182.25

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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.