Home / 12,545.64-17,325.36-9,888.84

Finding the Fourth Proportional to 12,545.64, 17,325.36 and 9,888.84

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Solution

The fourth proportional to 12,545.64, 17,325.36 and 9,888.84 is: 13,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.64 : 17,325.36 = 9,888.84 : x
  2. Step 2: Convert to fraction form
    12,545.64/17,325.36 = 9,888.84/x
  3. Step 3: Cross multiply
    12,545.64x = 17,325.36 × 9,888.84
  4. Step 4: Simplify right side
    12,545.64x = 171,327,712.98
  5. Step 5: Solve for x
    x = 171,327,712.98/12,545.64
  6. Step 6: Final answer
    x = 13,656.35

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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.