Home / 15,702.95-21,647.67-11,225.07

Finding the Fourth Proportional to 15,702.95, 21,647.67 and 11,225.07

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Solution

The fourth proportional to 15,702.95, 21,647.67 and 11,225.07 is: 15,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,702.95 : 21,647.67 = 11,225.07 : x
  2. Step 2: Convert to fraction form
    15,702.95/21,647.67 = 11,225.07/x
  3. Step 3: Cross multiply
    15,702.95x = 21,647.67 × 11,225.07
  4. Step 4: Simplify right side
    15,702.95x = 242,996,611.09
  5. Step 5: Solve for x
    x = 242,996,611.09/15,702.95
  6. Step 6: Final answer
    x = 15,474.58

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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.