Home / 13,915.40-20,870.52-4,052.34

Finding the Fourth Proportional to 13,915.40, 20,870.52 and 4,052.34

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Solution

The fourth proportional to 13,915.40, 20,870.52 and 4,052.34 is: 6,077.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.40 : 20,870.52 = 4,052.34 : x
  2. Step 2: Convert to fraction form
    13,915.40/20,870.52 = 4,052.34/x
  3. Step 3: Cross multiply
    13,915.40x = 20,870.52 × 4,052.34
  4. Step 4: Simplify right side
    13,915.40x = 84,574,318.40
  5. Step 5: Solve for x
    x = 84,574,318.40/13,915.40
  6. Step 6: Final answer
    x = 6,077.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.