Home / 13,441.47-18,547.86-7,472.55

Finding the Fourth Proportional to 13,441.47, 18,547.86 and 7,472.55

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Solution

The fourth proportional to 13,441.47, 18,547.86 and 7,472.55 is: 10,311.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.47 : 18,547.86 = 7,472.55 : x
  2. Step 2: Convert to fraction form
    13,441.47/18,547.86 = 7,472.55/x
  3. Step 3: Cross multiply
    13,441.47x = 18,547.86 × 7,472.55
  4. Step 4: Simplify right side
    13,441.47x = 138,599,811.24
  5. Step 5: Solve for x
    x = 138,599,811.24/13,441.47
  6. Step 6: Final answer
    x = 10,311.36

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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.