Home / 14,354.23-19,809.10-7,981.35

Finding the Fourth Proportional to 14,354.23, 19,809.10 and 7,981.35

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Solution

The fourth proportional to 14,354.23, 19,809.10 and 7,981.35 is: 11,014.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,354.23 : 19,809.10 = 7,981.35 : x
  2. Step 2: Convert to fraction form
    14,354.23/19,809.10 = 7,981.35/x
  3. Step 3: Cross multiply
    14,354.23x = 19,809.10 × 7,981.35
  4. Step 4: Simplify right side
    14,354.23x = 158,103,360.29
  5. Step 5: Solve for x
    x = 158,103,360.29/14,354.23
  6. Step 6: Final answer
    x = 11,014.41

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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.