Home / 15,807.32-21,787.08-12,263.84

Finding the Fourth Proportional to 15,807.32, 21,787.08 and 12,263.84

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Solution

The fourth proportional to 15,807.32, 21,787.08 and 12,263.84 is: 16,903.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,807.32 : 21,787.08 = 12,263.84 : x
  2. Step 2: Convert to fraction form
    15,807.32/21,787.08 = 12,263.84/x
  3. Step 3: Cross multiply
    15,807.32x = 21,787.08 × 12,263.84
  4. Step 4: Simplify right side
    15,807.32x = 267,193,263.19
  5. Step 5: Solve for x
    x = 267,193,263.19/15,807.32
  6. Step 6: Final answer
    x = 16,903.13

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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.