Home / 13,347.07-18,417.54-7,377.77

Finding the Fourth Proportional to 13,347.07, 18,417.54 and 7,377.77

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Solution

The fourth proportional to 13,347.07, 18,417.54 and 7,377.77 is: 10,180.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.07 : 18,417.54 = 7,377.77 : x
  2. Step 2: Convert to fraction form
    13,347.07/18,417.54 = 7,377.77/x
  3. Step 3: Cross multiply
    13,347.07x = 18,417.54 × 7,377.77
  4. Step 4: Simplify right side
    13,347.07x = 135,880,438.57
  5. Step 5: Solve for x
    x = 135,880,438.57/13,347.07
  6. Step 6: Final answer
    x = 10,180.55

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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.