Home / 13,153.19-19,707.50-7,948.13

Finding the Fourth Proportional to 13,153.19, 19,707.50 and 7,948.13

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Solution

The fourth proportional to 13,153.19, 19,707.50 and 7,948.13 is: 11,908.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.19 : 19,707.50 = 7,948.13 : x
  2. Step 2: Convert to fraction form
    13,153.19/19,707.50 = 7,948.13/x
  3. Step 3: Cross multiply
    13,153.19x = 19,707.50 × 7,948.13
  4. Step 4: Simplify right side
    13,153.19x = 156,637,693.31
  5. Step 5: Solve for x
    x = 156,637,693.31/13,153.19
  6. Step 6: Final answer
    x = 11,908.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.