Home / 15,632.19-21,574.48-8,916.28

Finding the Fourth Proportional to 15,632.19, 21,574.48 and 8,916.28

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Solution

The fourth proportional to 15,632.19, 21,574.48 and 8,916.28 is: 12,305.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,632.19 : 21,574.48 = 8,916.28 : x
  2. Step 2: Convert to fraction form
    15,632.19/21,574.48 = 8,916.28/x
  3. Step 3: Cross multiply
    15,632.19x = 21,574.48 × 8,916.28
  4. Step 4: Simplify right side
    15,632.19x = 192,364,104.53
  5. Step 5: Solve for x
    x = 192,364,104.53/15,632.19
  6. Step 6: Final answer
    x = 12,305.64

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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.