Home / 13,440.24-18,547.51-7,472.43

Finding the Fourth Proportional to 13,440.24, 18,547.51 and 7,472.43

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Solution

The fourth proportional to 13,440.24, 18,547.51 and 7,472.43 is: 10,311.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.24 : 18,547.51 = 7,472.43 : x
  2. Step 2: Convert to fraction form
    13,440.24/18,547.51 = 7,472.43/x
  3. Step 3: Cross multiply
    13,440.24x = 18,547.51 × 7,472.43
  4. Step 4: Simplify right side
    13,440.24x = 138,594,970.15
  5. Step 5: Solve for x
    x = 138,594,970.15/13,440.24
  6. Step 6: Final answer
    x = 10,311.94

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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.