Home / 15,929.00-21,972.95-9,876.48

Finding the Fourth Proportional to 15,929.00, 21,972.95 and 9,876.48

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Solution

The fourth proportional to 15,929.00, 21,972.95 and 9,876.48 is: 13,623.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,929.00 : 21,972.95 = 9,876.48 : x
  2. Step 2: Convert to fraction form
    15,929.00/21,972.95 = 9,876.48/x
  3. Step 3: Cross multiply
    15,929.00x = 21,972.95 × 9,876.48
  4. Step 4: Simplify right side
    15,929.00x = 217,015,402.29
  5. Step 5: Solve for x
    x = 217,015,402.29/15,929.00
  6. Step 6: Final answer
    x = 13,623.92

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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.