Home / 15,574.16-21,490.40-8,767.35

Finding the Fourth Proportional to 15,574.16, 21,490.40 and 8,767.35

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Solution

The fourth proportional to 15,574.16, 21,490.40 and 8,767.35 is: 12,097.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,574.16 : 21,490.40 = 8,767.35 : x
  2. Step 2: Convert to fraction form
    15,574.16/21,490.40 = 8,767.35/x
  3. Step 3: Cross multiply
    15,574.16x = 21,490.40 × 8,767.35
  4. Step 4: Simplify right side
    15,574.16x = 188,413,880.36
  5. Step 5: Solve for x
    x = 188,413,880.36/15,574.16
  6. Step 6: Final answer
    x = 12,097.85

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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.