Home / 12,925.05-17,838.26-7,888.23

Finding the Fourth Proportional to 12,925.05, 17,838.26 and 7,888.23

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Solution

The fourth proportional to 12,925.05, 17,838.26 and 7,888.23 is: 10,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,925.05 : 17,838.26 = 7,888.23 : x
  2. Step 2: Convert to fraction form
    12,925.05/17,838.26 = 7,888.23/x
  3. Step 3: Cross multiply
    12,925.05x = 17,838.26 × 7,888.23
  4. Step 4: Simplify right side
    12,925.05x = 140,712,258.24
  5. Step 5: Solve for x
    x = 140,712,258.24/12,925.05
  6. Step 6: Final answer
    x = 10,886.79

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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.