Home / 15,717.48-21,707.14-9,763.40

Finding the Fourth Proportional to 15,717.48, 21,707.14 and 9,763.40

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Solution

The fourth proportional to 15,717.48, 21,707.14 and 9,763.40 is: 13,484.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,717.48 : 21,707.14 = 9,763.40 : x
  2. Step 2: Convert to fraction form
    15,717.48/21,707.14 = 9,763.40/x
  3. Step 3: Cross multiply
    15,717.48x = 21,707.14 × 9,763.40
  4. Step 4: Simplify right side
    15,717.48x = 211,935,490.68
  5. Step 5: Solve for x
    x = 211,935,490.68/15,717.48
  6. Step 6: Final answer
    x = 13,484.06

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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.