Home / 15,702.08-21,663.50-9,731.57

Finding the Fourth Proportional to 15,702.08, 21,663.50 and 9,731.57

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Solution

The fourth proportional to 15,702.08, 21,663.50 and 9,731.57 is: 13,426.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,702.08 : 21,663.50 = 9,731.57 : x
  2. Step 2: Convert to fraction form
    15,702.08/21,663.50 = 9,731.57/x
  3. Step 3: Cross multiply
    15,702.08x = 21,663.50 × 9,731.57
  4. Step 4: Simplify right side
    15,702.08x = 210,819,709.72
  5. Step 5: Solve for x
    x = 210,819,709.72/15,702.08
  6. Step 6: Final answer
    x = 13,426.23

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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.