Home / 15,501.95-21,391.20-8,696.27

Finding the Fourth Proportional to 15,501.95, 21,391.20 and 8,696.27

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Solution

The fourth proportional to 15,501.95, 21,391.20 and 8,696.27 is: 12,000.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,501.95 : 21,391.20 = 8,696.27 : x
  2. Step 2: Convert to fraction form
    15,501.95/21,391.20 = 8,696.27/x
  3. Step 3: Cross multiply
    15,501.95x = 21,391.20 × 8,696.27
  4. Step 4: Simplify right side
    15,501.95x = 186,023,543.87
  5. Step 5: Solve for x
    x = 186,023,543.87/15,501.95
  6. Step 6: Final answer
    x = 12,000.01

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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.