Home / 15,601.89-21,532.63-8,889.93

Finding the Fourth Proportional to 15,601.89, 21,532.63 and 8,889.93

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Solution

The fourth proportional to 15,601.89, 21,532.63 and 8,889.93 is: 12,269.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,601.89 : 21,532.63 = 8,889.93 : x
  2. Step 2: Convert to fraction form
    15,601.89/21,532.63 = 8,889.93/x
  3. Step 3: Cross multiply
    15,601.89x = 21,532.63 × 8,889.93
  4. Step 4: Simplify right side
    15,601.89x = 191,423,551.19
  5. Step 5: Solve for x
    x = 191,423,551.19/15,601.89
  6. Step 6: Final answer
    x = 12,269.25

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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.