Home / 19,913.06-27,482.76-12,838.12

Finding the Fourth Proportional to 19,913.06, 27,482.76 and 12,838.12

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Solution

The fourth proportional to 19,913.06, 27,482.76 and 12,838.12 is: 17,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913.06 : 27,482.76 = 12,838.12 : x
  2. Step 2: Convert to fraction form
    19,913.06/27,482.76 = 12,838.12/x
  3. Step 3: Cross multiply
    19,913.06x = 27,482.76 × 12,838.12
  4. Step 4: Simplify right side
    19,913.06x = 352,826,902.10
  5. Step 5: Solve for x
    x = 352,826,902.10/19,913.06
  6. Step 6: Final answer
    x = 17,718.36

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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.